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Borocookeite
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| Mineral: | Borocookeite: Li(1+3x)Al(4-x)(BSi3)O10(OH,F)8 [x = 0-0.33] | ||||
| Comments: | Black and white image of multicolored tourmaline crystals (1) in fine-flaky aggregate of borocookeite (2). (AmMin, v 88, p 831). | ||||
| Location: | Sosedka and Mokhovaya pegmatite veins, Malkhan gem tourmaline deposit, Chikoy district, Chita oblast, Russia. | ||||
| Scale: | Sample size is 5 x 5 cm. | ||||
| Copyright: | © American Mineralogist | ||||
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