Numanoite Borcarite Image

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Borcarite, Numanoite

Large Borcarite Image

Mineral:

Borcarite: Ca4MgB4O6(OH)6(CO3)2
Numanoite: Ca4CuB4O6(OH)6(CO3)2

Comments:

Zoned borcarite (Bc) crystal with a core of green numanoite (Nm). CanMin 45:307.

Location:

Fuka mine, 40 km west-northwest of Okayama City, western Japan.

Scale:

See Image.

Copyright:

© Canadian Mineralogist

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