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Tourmaline : A(D3)G6(T6O18)(BO3)3X3Z

Copyright © 2009 Steve Hardinger and Dragon Minerals. All rights reserved.
 
 
minID: UK4-KLJ

Tourmaline : A(D3)G6(T6O18)(BO3)3X3Z

Copyright © 2009 Steve Hardinger and Dragon Minerals. All rights reserved.  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 5.6 cm x 5.6 cm x 4.6 cm

Thin, mostly nonterminated, black tourmaline needles on a matrix of clay and fractured feldspar. The longest tourmaline needle is 2.4 cm. From the Hairball Pocket locality in the San Marcos Mountains, this is a rare southern California tourmaline locality piece from a single-time 2008 find of maybe 20 specimens.

Specimen size: 5.6 x 5.6 x 4.6 cm (2.2 x 2.2 x 1.8 inches)

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Photo added: 11th Mar 2009