Sillimanite

  

 

  

Origin: Ratnapura, Hakurutale, Sri Lanka

Sample size: 3 x 0.6 x 0.4 cm (top left), 1.3 x 0.3 x 0.25 cm (top right), 1.2 x 0.7 x 0.25 cm (bottom)

 

Origin: Mogok, Burma

Ex. William Larson collection

Sample size: 2.2 x 0.7 x 0.5 cm

 

  

Origin: Orissa, India

Ex. Charlie Key collection

Sample size: 2.7 x 2.1 x 0.9 cm

 

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Typical almandine-sillimanite-biotite gneiss from this high-grade metamorphic granulite facies region; Garnet is present as anhedral lensoid aggregates

Origin: Gyadal, Rogaland, Norway

Sample size: 5 x 7 x 9 cm

 

  

White-grey monomineralic sillimanite bands in matrix

Origin: Vasstö, Telemark, Norway

Sample size: 10x13 cm

 

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