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Lepidolite : K(Li,Al)3(Si,Al)4O10(F,OH)2, Elbaite : Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)

Copyright © DSW 2011
 
 
 
minID: 43C-06C

Lepidolite : K(Li,Al)3(Si,Al)4O10(F,OH)2, Elbaite : Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)

Copyright © DSW 2011  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 6.1 cm x 2.1 cm x 2 cm

Crystal section of green elbaite replaced in its core by fine-grained pink lepidolite. The outer layer of elbaite is 2mm thick, clear and hard, suggesting the pseudomorphic replacement in the center may be composition-driven. There are smaller sidecar crystals at the base, each similarly replaced.

6.1 x 2.1 x 2.0cm

Locality is actually given as the Jacare Mine, Itinga, Minas Gerais, Brazil, which is listed in MinRec v30, p40 according to the index; I have not been able to look this article up or find enough other data to create a new loc entry.

Don Windeler collection, acquired late 1999 / 2000 from the Fraziers.

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Photo added: 10th Jan 2011

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