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Pseudohexagonal Chalcocite Crystals
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Collection |
John Betts - Fine Minerals |
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Description |
Pseudohexagonal crystals of black Chalcocite with secondary faces around
the edges of the termination. The hexagonal appearance is due to
twinning of monoclinic crystals. The largest crystal is
doubly terminated. No damage. Ex. W. Severance collection #90.42; ex.
Paul Lowe.
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Locality |
Geevor Mine, No. 9 Pig Lode, St. Just, Cornwall, England |
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Dimensions |
12 x 12 x 9 mm. |
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Specimen Grade |
C |
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Photograph |
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