Sillimanite

Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka

WOW ! Sillimanite usually comes out as rounded, water-worned pebbles but here comes a beautifull complete & biterminated crystal with sharp edges. Completely transparent, it is of a light blue color and C axis shows a light pinkish hue. Small, but quite exceptionnal for the species ! Dimensions : 1,16cm x 0,29cm x 0,27cm

Sillimanite, Quartz

East Hampton, Middlesex Co., Connecticut, USA

Fibrous sillimanite on quartz. Collected from the "Powerline near Hurd Park". Piece is likely from one of the quartz-sillimanite nodules noted from the Ordovician Collins Hill Formation. Anthony J. Albini collection.

Sillimanite

Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Specimen and photo: Salvatore Natalizia

Sillimanite

Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA

Dark brownish olive green sillimanite prism in microcline and quartz. 6 x 7.5 cm

Sillimanite, Quartz

East Haddam, Middlesex Co., Connecticut, USA

Fibrous sillimanite in parallel growth with smoky quartz rods from the Brimfield Schist exposed at the owner's home. Harold Moritz collection.

Sillimanite, Magnetite, Quartz

Willimantic, Windham, Windham Co., Connecticut, USA

Clove-brown, translucent, chatoyant prismatic sillimanite crystals in granular quartz with black magnetite (lower left). From an unspecified location no reference or collection seems to have recorded. But it is likely from an exposure of the Tatnic Hill Formation, which hosts similar crystals at Chester and Norwich. Harold Moritz collection.

Sillimanite, Andalusite

Hüttenberg, Glees, Brohltal, Ahrweiler District, Rhineland-Palatinate, Germany

White sillimanite, partly replacing pink andalusite in crystalline schist. Sillimanit, weiß, Teil- Pseudomorphose nach rosa Andalusit in kristallinem Schiefer, Wehr Vulkan, Eifel, Foto F. Kruijen, FOV 4mm, Sammlung Blass

Sillimanite

Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

A very fine sharp terminated gemmy crystal of Sillimanite, from what i have seen, most of the crytals from this locality have a slightly water worn look to them, this one has well defined crystal faces. The colour varies depending on the light and the angle it is viewed from, from colourless to blueish/lavender. One of the child photos shows the ...

Sillimanite

Pein-Pyit, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

RRUFF Project Specimen ID: R060080 Locality: Pein Pyit, Mogok, Burma Source: Marcus Origlieri Light tan colored water-worn pebble

Sillimanite, Sillimanite (Var: Fibrolite)

Roveredo, Moesa Region, Grisons, Switzerland

Nearly pure silky white sillimanite in intertwined aggregate. 3.5 x 8 cm Ex Joe Cilen

Sillimanite

Laacher See Volcanic Complex, Germany

Picture width 3 mm. Collection Bernd Ternes, foto Stephan Wolfsried

Sillimanite

Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA

Type specimen of sillimanite in quartz-rich segregation in the biotite-rich Tatnic Hill Formation gneiss. On display at the Joe Webb People's Museum, Exley Science Center, Wesleyan University, Middletown, Connecticut, USA.

Sillimanite

Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA

Sillimanite crystal. Canadian Museum of Nature specimen 51835 on display at the New York State Museum in Albany.

Sillimanite

Allier River alluvials, Neuvy, Moulins, Allier, Auvergne-Rhône-Alpes, France

Heavy sands collected by Gaétan Bouclet

Sillimanite

Allier River alluvials, Neuvy, Moulins, Allier, Auvergne-Rhône-Alpes, France

Heavy sands collected by Gaétan Bouclet

Sillimanite

Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA

Sillimanite crystals on gneiss. Former Karl Schwarz collection.

Sillimanite

Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA

Crystal is about 3 cm long. Harvard Mineralogical Museum, no. 85917. P. Cristofono photo. (Probably from the sillimanite type locality.)

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Sillimanite. Vasco Trancoso collection and photo. Size: 2.0 x 0.5 x 0.3 cm Sillimanite is a high temperature and high pressure aluminum silicate found in metamorphic rocks. Transparent crystals are called "fibrolite" by gemologists. This is a fine elongate crystal with a bit of rounding. The edge rounding likely represents resorption into the ...

Sillimanite

Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

A perfect light blue crystal having a lozenge-like cross-section, measuring 24 x 5x 4 mm with a chisel-like termination; weight 1.14 g. Collection and photo of the author.

Sillimanite

Métou river alluvials, Vergonzac, Siaugues-Sainte-Marie, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Chester, Middlesex Co., Connecticut, USA

Brownish gray prisms of sillimanite with square cross-section in light gray quartz, white oligoclase, dark brown rutile, black magnetite, and annite. 3 x 5 cm Ex Joe Cilen

Sillimanite

Willimantic, Windham, Windham Co., Connecticut, USA

Sillimanite crystals richly distributed in matrix. The crystals range from colorless to a brownish grey, some with marked luster and transparency. 9.7 x 6 x 3.9 cm overall. Ex Seaman Museum. Henry Minot photo & collection.

Sillimanite

Willimantic, Windham, Windham Co., Connecticut, USA

Sillimanite crystals in matrix. The matrix is about 5 inches tall. Specimen on public display at Yale Peabody Museum, New Haven, Connecticut, photographed hand-held with P/S in February, 2012.

Sillimanite, Corundum, Diaspore

Åneland 02 Feldspar Quarry, Åneland, Evje og Hornnes, Agder, Norway

The picture shows a sample of fine fibrous sillimanite, presumably pseudomorph after another mineral. The primary mineral might have been andalusite, but this remains to be proven. The corundum occurs as blue corns and microcrystals in the sillimanite mass. The diaspore is invisible but confirmed by XRD (Alf Olav Larsen, Norsk Hydro). The sample ...

Sillimanite

Natrona County, Wyoming, USA

Field of view 4 cm.

Sillimanite

Falls of the Yantic River, Norwich, New London Co., Connecticut, USA

Sillimanite crystals from one of the several classic occurrences of this mineral in the Tatnic Hill Formation. Former John I. Legro and Ed Force collections.

Sillimanite

Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Rounded gemmy crystal of fibrolite. Photographed by, and in the collection of Dan Costian.

Sillimanite

Tranomaro, Amboasary Sud, Anosy, Madagascar

Single Crystal Old sample Collection and photo: Arliguie Michel

Sillimanite

Oak Hill Area, Standish, Cumberland County, Maine, USA

LW LED illuminated white fluorescing sillimanite with red reflections from UV source.

Sillimanite

Hakurutale, Nuwara Eliya District, Central Province, Sri Lanka

The first of three remarkable crystals of this usually-boring species, brought back from Sri Lanka personally by a friend of mine about 15 years ago. This doubly-terminated crystal is partially etched, but clearly shows both terminations. 3 x 0.6 x 0.4 cm

Sillimanite

"Christmas Point" pegmatite, Khmara Bay, Casey Bay, Napier Complex, Enderby Land, Eastern Antarctica, Antarctica

Large 9x2x2 cm gem quality pinkish-grey prismatic crystall of Sillimanite in granitic pegmatite matrix. Associated with Quartz, Microcline and Biotite. Specimen size is 11.5x7x3.5 cm. Collected by Edward Grew. Pavel M. Kartashov collection and photo.

Sillimanite

Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Grey crystals of sillimanite (2-2.5 cm in size) in pegmatite matrix. Photo and collection: Giovanni Fraccaro.

Sillimanite, Biotite, Quartz, K Feldspar, Plagioclase, Sillimanite (Var: Fibrolite)

Plešovice quarry, Plešovice, Zlatá Koruna, Český Krumlov District, South Bohemian Region, Czech Republic

Decorative aggregates of sillimanite on foliation plane of biotite gneiss, width of the area 7 cm. Actual locality is Plešovice quarry near Český Krumlov.

Sillimanite

"Christmas Point" pegmatite, Khmara Bay, Casey Bay, Napier Complex, Enderby Land, Eastern Antarctica, Antarctica

Fragment of giant 4.5x3.5x1.5 cm terminated but broken crystall of gem quality pinkish-grey Sillimanite in granitic pegmatite matrix. Its iridescence is well visible. Associated with Quartz, Microcline and Biotite. Specimen size is 11.5x7x3.5 cm. Collected by Edward Grew. Pavel M. Kartashov collection and photo.

Sillimanite

Pershyttan ore field, Nora, Örebro County, Sweden

Sillimanite

Entia Valley, Ambalindum Station, Harts Range, Central Desert Region, Northern Territory, Australia

A 4.2 by 1.7 cms aggregate of long and slender parallel crystals. JSS specimen and photograph.

Sillimanite

Miller Farm Property, Carlow Township, Hastings County, Ontario, Canada

The sillimanite xl measures 1.5 cm. Was collected in the winter of 2002. Is in the collection of the photographer

Sillimanite, Kyanite, Chloritoid

Västanå Iron Mine, Näsum, Bromölla, Skåne County, Sweden

Sillimanite mixed with kyanite and a fissure filling of chloritoid. Size 30 cm. Photo Kjell Gatedal

Sillimanite

Jacobs Ruby Mine, Cowee Valley, Macon Co., North Carolina, USA

The largest specimen here is 20mm in length. The photo was taken in 2004 by Rex Biggers.

Sillimanite, Biotite

Saquarema, Rio de Janeiro, Brazil

Sillimanite sample with Biotite in center - 6x4x1,5cm - October of 2007

Sillimanite, Surinamite

"Christmas Point" pegmatite, Khmara Bay, Casey Bay, Napier Complex, Enderby Land, Eastern Antarctica, Antarctica

Polished specimen with rhombic section of quadrangular crystal of Sillimanite in granitic pegmatite matrix. The black Quartz-Cordierite-Biotite veinlet is enriched with small blue Surinamite inclusions. Specimen size is 5x3x2 cm. Part of Edward Grew's #2292B specimen. Pavel M. Kartashov collection and photo.

Sillimanite

Odisha, India

Charlie was very impressed with this rare gem crystal of sillimanite, which he told me was the best he had seen, for combination of size and form. I cannot argue, as I have never seen but rounded pebbles of this material, from Mogok and not from India. The crystal is a little bit like a floppy wizards hat in form, but it is translucent and ...

Sillimanite

Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Pale periwinkle double-terminated gemmy crystal showing great pleochroism down the c-axis, as the crystal turns to a pale yellow when shifted. The crystal weighs 7.9 carats and exhibits great form and transparency for a species that is not often gemmy. Overall dimensions are 17.5 mm x 8.6 mm x 4.2 mm.

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

2.2 x 0.7 x 0.5 cm

Sillimanite, Dravite

Moland Industrial Site, Akland, Risør, Agder, Norway

Sillimanite covering a 6 cm doubly terminated dravite crystal. The specimen was found in 2002 during road construction work.

Sillimanite, Muscovite

Pestsovye Keivy, Keivy Mountains, Lovozersky District, Murmansk Oblast, Russia

White fibrous masses of sillimanite in metaaluminous shists. Such appearance of rock-forming sillimanite is the most abundant in the nature and differ significantly from gem varieties of the mineral. Specimen size is 8x5 cm. Collected by Victor Levitskii in 2005. Pavel M. Kartashov collection and photo.

Sillimanite

Natrona County, Wyoming, USA

Crystallization not terminated in field with 4x4cm - December of 2004

Sillimanite, Sillimanite (Var: Fibrolite)

Damm, Aschaffenburg, Lower Franconia, Bavaria, Germany

Cream white and fine-fibrous Sillimanite with polishing on front side of piece. Specimen size 9,3 x 4 cm.

Sillimanite

Laacher See Volcanic Complex, Germany

Picture width 3 mm. Collection Bernd Ternes, foto Stephan Wolfsried

Sillimanite

Natrona County, Wyoming, USA

Sample with 7x7x6cm - December of 2004

Sillimanite

Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA

6.2 cm. Red crystals in matrix from the collection of David J. Eicher. Ex- Dr. F. Krantz, Bonn, Germany; ex-Dr. Winfried Böhmer, Wunstorf, Germany.

Sillimanite

Morton Homestead, Prospect Park, Ridley Township, Delaware Co., Pennsylvania, USA

The center specimen is about 2" long by 1" wide.

Sillimanite

Brandywine Quarry, Wilmington, New Castle County, Delaware, USA

Crystals of sillimanite, to 1 cm in width, embedded in schistose rock. S412-71 N1854N

Sillimanite

Chester, Middlesex Co., Connecticut, USA

12.4 x 7.1 x 2.7 cm. A large specimen of the mineral sillimanite with 3-dimensional but embedded crystals, named just before the time this was found and named for Professor Silliman of Yale. Ex. Charles Shepherd Collection (1804-1886), whom according to the Mineralogical Record Archive on him was with Benjamin Silliman's staff at Yale in 1827, as ...

Sillimanite

Sénouire river alluvials, Frugières-le-Pin, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Oconee County, South Carolina, USA

3.0 x 2.4 x 1.3 cm. Sillimanite is a high temperature and high pressure aluminum silicate found in high-grade regional metamorphic rocks. Lustrous, parallel-growth, olive-brown sillimanite crystals are embedded in schist matrix on this fine and rich toenail specimen from a very uncommon South Carolina locality. Seldom available in any size from ...

Sillimanite

Kilbourne Hole, Doña Ana County, New Mexico, USA

7 x 7 x 7 mm This shows the purple coloring of this pleochroic stone!! One picture is in natural light, the other two are taken with a polarizing filter, rotated at 90 degrees from each other. T131

Sillimanite

Groton, Grafton County, New Hampshire, USA

4 cm sillimanite pseudomorph after andalusite. P. Cristofono photo.

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

1.7 x 0.9 x 0.3 cm. Sillimanite is a high temperature and high pressure aluminum silicate found in high-grade regional metamorphic rocks. Transparent crystals are called "fibrolite" by gemologists. This is a gemmy, fine, light purple elongate crystal with a bit of rounding. The edge rounding likely represents resorption into the matrix more than ...

Sillimanite

Bouchassou river alluvials, Ribeyre, Saint-Ilpize, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

1.8 x 0.9 x 0.4 cm. Sillimanite is a high temperature and high pressure aluminum silicate found in high-grade regional metamorphic rocks. Transparent crystals are called "fibrolite" by gemologists. This is a gemmy, fine, lavender, elongate crystal with a bit of rounding. The edge rounding likely represents resorption into the matrix more than ...

Sillimanite, Quartz (Var: Smoky Quartz)

Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA

Aggregate of fine-grained, thin, elongated sillimanite crystals on smoky quartz.

Sillimanite

Cuzzago-Proman pegmatite veins, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

Prismatic gray crystals of sillimanite to 5.2 cm in length are frozen throughout this 10.0 x 9.5 x 5.5 cm matrix. Quite nice display specimen for the species. Ex Wolfgang E. Henkel collection.

Sillimanite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz District, Rhineland-Palatinate, Germany

White, fibrous Sillimanite, field of view 40 mm, collection C. &H. Schäfer

Sillimanite, Quartz

Oconee County, South Carolina, USA

This 5 1/2 x 3 inch specimen is a quartz-sillimanite schist from north of Seneca in Oconee Co. South Carolina. In the Creekmur collection.

Sillimanite

Métou river alluvials, Vergonzac, Siaugues-Sainte-Marie, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Falls of the Yantic River, Norwich, New London Co., Connecticut, USA

11.4 x 6.2 x 4.6 cm. Flat-lying, lustrous crystals of sillimanite (to 3 cm) embedded in schist matrix, a rich specimen from a historic old locality. Ex. Philadelphia Academy of Sciences Collection.

Sillimanite

Brandywine Springs, New Castle County, Delaware, USA

Delaware's State Mineral. Specimen measures approximately 7 inches across. Photographed with permission from University of Delaware Mineralogical Museum.

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

RRUFF Project Specimen ID: R050601 Locality: Mogok, Burma Source: Bill Larson Tan colored cleavage fragment from a water worn pebble

Sillimanite

Champsiaux, La Meyze, Limoges, Haute-Vienne, Nouvelle-Aquitaine, France

Size: 9 X 3 cm Collection and photo: M Arliguie

Sillimanite

Loire River alluvials, Gien, Montargis, Loiret, Centre-Val de Loire, France

Size 0,9 mm – Photo and collection François Périnet - Analyse Vincent Bourgoin with the association Jean Wyart (UPMC).

Sillimanite

Le Loch beach alluvials, Guidel-Plages, Guidel, Lorient, Morbihan, Brittany, France

Heavy sands collected by Serge Guennéguès

Sillimanite

Hincks Bridge, Lac-Sainte-Marie, La Vallée-de-la-Gatineau RCM, Outaouais, Québec, Canada

H:5cm x W:3.5cm x D:0.8cm; Largest Crystal: 1.5cm Needles of clear sillimanite to 1.5 cm in a 1.0 mm thick layer of sillimanite on a piece of paragneiss containing other layers and lenses of sillimanite.

Sillimanite, Zircon

Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Red-purplish twinned zircon crystal, up to 5 mm, with light blue-gray prismatic, fibrous sillimanite crystal, up to 15 mm, in matrix. In my personal Alpine minerals suite. Photo: Simone Citon.

Sillimanite

Allier River alluvials, Neuvy, Moulins, Allier, Auvergne-Rhône-Alpes, France

Heavy sands collected by Gaétan Bouclet

Sillimanite, Quartz

East Hampton, Middlesex Co., Connecticut, USA

Sillimanite

Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka

Sillimanite

Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Specimen and photo: Salvatore Natalizia

Sillimanite, Magnetite, Quartz

Willimantic, Windham, Windham Co., Connecticut, USA

Sillimanite

Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA

Dark brownish olive green sillimanite prism in microcline and quartz. 6 x 7.5 cm

Sillimanite, Quartz

East Haddam, Middlesex Co., Connecticut, USA

Fibrous sillimanite in parallel growth with smoky quartz rods from the Brimfield Schist exposed at the owner's home. Harold Moritz collection.

Sillimanite, Andalusite

Hüttenberg, Glees, Brohltal, Ahrweiler District, Rhineland-Palatinate, Germany

Sillimanite

Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Sillimanite

Pein-Pyit, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

RRUFF Project Specimen ID: R060080 Locality: Pein Pyit, Mogok, Burma Source: Marcus Origlieri Light tan colored water-worn pebble

Sillimanite

Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA

Sillimanite, Sillimanite (Var: Fibrolite)

Roveredo, Moesa Region, Grisons, Switzerland

Nearly pure silky white sillimanite in intertwined aggregate. 3.5 x 8 cm Ex Joe Cilen

Sillimanite

Laacher See Volcanic Complex, Germany

Picture width 3 mm. Collection Bernd Ternes, foto Stephan Wolfsried

Sillimanite

Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA

Sillimanite crystal. Canadian Museum of Nature specimen 51835 on display at the New York State Museum in Albany.

Sillimanite

Allier River alluvials, Neuvy, Moulins, Allier, Auvergne-Rhône-Alpes, France

Heavy sands collected by Gaétan Bouclet

Sillimanite

Allier River alluvials, Neuvy, Moulins, Allier, Auvergne-Rhône-Alpes, France

Heavy sands collected by Gaétan Bouclet

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Sillimanite

Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA

Sillimanite crystals on gneiss. Former Karl Schwarz collection.

Sillimanite

Sillimanite type locality, Chester, Middlesex Co., Connecticut, USA

Crystal is about 3 cm long. Harvard Mineralogical Museum, no. 85917. P. Cristofono photo. (Probably from the sillimanite type locality.)

Sillimanite

Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

A perfect light blue crystal having a lozenge-like cross-section, measuring 24 x 5x 4 mm with a chisel-like termination; weight 1.14 g. Collection and photo of the author.

Sillimanite

Métou river alluvials, Vergonzac, Siaugues-Sainte-Marie, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Chester, Middlesex Co., Connecticut, USA

Brownish gray prisms of sillimanite with square cross-section in light gray quartz, white oligoclase, dark brown rutile, black magnetite, and annite. 3 x 5 cm Ex Joe Cilen

Sillimanite

Willimantic, Windham, Windham Co., Connecticut, USA

Sillimanite crystals in matrix. The matrix is about 5 inches tall. Specimen on public display at Yale Peabody Museum, New Haven, Connecticut, photographed hand-held with P/S in February, 2012.

Sillimanite

Willimantic, Windham, Windham Co., Connecticut, USA

Sillimanite, Corundum, Diaspore

Åneland 02 Feldspar Quarry, Åneland, Evje og Hornnes, Agder, Norway

Sillimanite

Natrona County, Wyoming, USA

Field of view 4 cm.

Sillimanite

Falls of the Yantic River, Norwich, New London Co., Connecticut, USA

Sillimanite crystals from one of the several classic occurrences of this mineral in the Tatnic Hill Formation. Former John I. Legro and Ed Force collections.

Sillimanite

Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Rounded gemmy crystal of fibrolite. Photographed by, and in the collection of Dan Costian.

Sillimanite

Hakurutale, Nuwara Eliya District, Central Province, Sri Lanka

Sillimanite

Tranomaro, Amboasary Sud, Anosy, Madagascar

Single Crystal Old sample Collection and photo: Arliguie Michel

Sillimanite

Oak Hill Area, Standish, Cumberland County, Maine, USA

LW LED illuminated white fluorescing sillimanite with red reflections from UV source.

Sillimanite

"Christmas Point" pegmatite, Khmara Bay, Casey Bay, Napier Complex, Enderby Land, Eastern Antarctica, Antarctica

Sillimanite

Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Grey crystals of sillimanite (2-2.5 cm in size) in pegmatite matrix. Photo and collection: Giovanni Fraccaro.

Sillimanite, Biotite, Quartz, K Feldspar, Plagioclase, Sillimanite (Var: Fibrolite)

Plešovice quarry, Plešovice, Zlatá Koruna, Český Krumlov District, South Bohemian Region, Czech Republic

Decorative aggregates of sillimanite on foliation plane of biotite gneiss, width of the area 7 cm. Actual locality is Plešovice quarry near Český Krumlov.

Sillimanite

Entia Valley, Ambalindum Station, Harts Range, Central Desert Region, Northern Territory, Australia

A 4.2 by 1.7 cms aggregate of long and slender parallel crystals. JSS specimen and photograph.

Sillimanite

"Christmas Point" pegmatite, Khmara Bay, Casey Bay, Napier Complex, Enderby Land, Eastern Antarctica, Antarctica

Sillimanite

Pershyttan ore field, Nora, Örebro County, Sweden

Sillimanite

Miller Farm Property, Carlow Township, Hastings County, Ontario, Canada

The sillimanite xl measures 1.5 cm. Was collected in the winter of 2002. Is in the collection of the photographer

Sillimanite, Kyanite, Chloritoid

Västanå Iron Mine, Näsum, Bromölla, Skåne County, Sweden

Sillimanite mixed with kyanite and a fissure filling of chloritoid. Size 30 cm. Photo Kjell Gatedal

Sillimanite

Jacobs Ruby Mine, Cowee Valley, Macon Co., North Carolina, USA

The largest specimen here is 20mm in length. The photo was taken in 2004 by Rex Biggers.

Sillimanite

Odisha, India

Sillimanite, Biotite

Saquarema, Rio de Janeiro, Brazil

Sillimanite sample with Biotite in center - 6x4x1,5cm - October of 2007

Sillimanite, Surinamite

"Christmas Point" pegmatite, Khmara Bay, Casey Bay, Napier Complex, Enderby Land, Eastern Antarctica, Antarctica

Sillimanite

Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

2.2 x 0.7 x 0.5 cm

Sillimanite, Dravite

Moland Industrial Site, Akland, Risør, Agder, Norway

Sillimanite covering a 6 cm doubly terminated dravite crystal. The specimen was found in 2002 during road construction work.

Sillimanite, Sillimanite (Var: Fibrolite)

Damm, Aschaffenburg, Lower Franconia, Bavaria, Germany

Cream white and fine-fibrous Sillimanite with polishing on front side of piece. Specimen size 9,3 x 4 cm.

Sillimanite, Muscovite

Pestsovye Keivy, Keivy Mountains, Lovozersky District, Murmansk Oblast, Russia

Sillimanite

Natrona County, Wyoming, USA

Crystallization not terminated in field with 4x4cm - December of 2004

Sillimanite

Laacher See Volcanic Complex, Germany

Picture width 3 mm. Collection Bernd Ternes, foto Stephan Wolfsried

Sillimanite

Natrona County, Wyoming, USA

Sample with 7x7x6cm - December of 2004

Sillimanite

Benson Mines, Benson, Star Lake, St. Lawrence Co., New York, USA

6.2 cm. Red crystals in matrix from the collection of David J. Eicher. Ex- Dr. F. Krantz, Bonn, Germany; ex-Dr. Winfried Böhmer, Wunstorf, Germany.

Sillimanite

Morton Homestead, Prospect Park, Ridley Township, Delaware Co., Pennsylvania, USA

The center specimen is about 2" long by 1" wide.

Sillimanite

Brandywine Quarry, Wilmington, New Castle County, Delaware, USA

Crystals of sillimanite, to 1 cm in width, embedded in schistose rock. S412-71 N1854N

Sillimanite

Chester, Middlesex Co., Connecticut, USA

Sillimanite

Sénouire river alluvials, Frugières-le-Pin, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Oconee County, South Carolina, USA

Sillimanite

Kilbourne Hole, Doña Ana County, New Mexico, USA

7 x 7 x 7 mm This shows the purple coloring of this pleochroic stone!! One picture is in natural light, the other two are taken with a polarizing filter, rotated at 90 degrees from each other. T131

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Sillimanite

Groton, Grafton County, New Hampshire, USA

4 cm sillimanite pseudomorph after andalusite. P. Cristofono photo.

Sillimanite

Bouchassou river alluvials, Ribeyre, Saint-Ilpize, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

Sillimanite, Quartz (Var: Smoky Quartz)

Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA

Aggregate of fine-grained, thin, elongated sillimanite crystals on smoky quartz.

Sillimanite

Cuzzago-Proman pegmatite veins, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

Prismatic gray crystals of sillimanite to 5.2 cm in length are frozen throughout this 10.0 x 9.5 x 5.5 cm matrix. Quite nice display specimen for the species. Ex Wolfgang E. Henkel collection.

Sillimanite

Métou river alluvials, Vergonzac, Siaugues-Sainte-Marie, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France

Sillimanite

Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz District, Rhineland-Palatinate, Germany

White, fibrous Sillimanite, field of view 40 mm, collection C. &H. Schäfer

Sillimanite, Quartz

Oconee County, South Carolina, USA

This 5 1/2 x 3 inch specimen is a quartz-sillimanite schist from north of Seneca in Oconee Co. South Carolina. In the Creekmur collection.

Sillimanite

Falls of the Yantic River, Norwich, New London Co., Connecticut, USA

11.4 x 6.2 x 4.6 cm. Flat-lying, lustrous crystals of sillimanite (to 3 cm) embedded in schist matrix, a rich specimen from a historic old locality. Ex. Philadelphia Academy of Sciences Collection.

Sillimanite

Brandywine Springs, New Castle County, Delaware, USA

Delaware's State Mineral. Specimen measures approximately 7 inches across. Photographed with permission from University of Delaware Mineralogical Museum.

Sillimanite

Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar

RRUFF Project Specimen ID: R050601 Locality: Mogok, Burma Source: Bill Larson Tan colored cleavage fragment from a water worn pebble

Sillimanite

Le Loch beach alluvials, Guidel-Plages, Guidel, Lorient, Morbihan, Brittany, France

Heavy sands collected by Serge Guennéguès

Sillimanite

Champsiaux, La Meyze, Limoges, Haute-Vienne, Nouvelle-Aquitaine, France

Size: 9 X 3 cm Collection and photo: M Arliguie

Sillimanite

Loire River alluvials, Gien, Montargis, Loiret, Centre-Val de Loire, France

Size 0,9 mm – Photo and collection François Périnet - Analyse Vincent Bourgoin with the association Jean Wyart (UPMC).

Sillimanite

Hincks Bridge, Lac-Sainte-Marie, La Vallée-de-la-Gatineau RCM, Outaouais, Québec, Canada

Sillimanite, Zircon

Nibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Red-purplish twinned zircon crystal, up to 5 mm, with light blue-gray prismatic, fibrous sillimanite crystal, up to 15 mm, in matrix. In my personal Alpine minerals suite. Photo: Simone Citon.

Sillimanite

Allier River alluvials, Neuvy, Moulins, Allier, Auvergne-Rhône-Alpes, France

Heavy sands collected by Gaétan Bouclet