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Biotite
Silver Crater Mine, Faraday Township, Hastings Co., Ontario, Canada
5.7 x 6.9 cm.
Pseudohexagonal crystal of black biotite. Collected in 1962 when it went by the name lepidomelane. (Author: crosstimber)

Biotite
Silver Crater Mine, Faraday Township, Hastings Co., Ontario, Canada
5.7 x 6.9 cm.
Pseudohexagonal crystal of black biotite. Collected in 1962 when it went by the name lepidomelane. (Author: crosstimber)

Dimensions: 800 x 554
File size: 61.68 kbytes
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