Remarkable group of good pseudo-rhombo-dodecahedral calcite crystals, mottled slightly yellow and translucent, associated with fine orange sphalerite crystals.
The top of the specimen is entirely crystallized and presents very beautiful volumes. On the back, some calcites are cleaved. The underside of the piece is made of solid gangue.
These Trèves calcite crystals represent the best of French calcite.
The Trèves deposit in the Cevennes (Gard), initially mined for zinc and lead and now inaccessible, has provided some very fine examples of calcite, among the most prized by French collectors.
Here is a video of this remarkable specimen of Trèves calcite crystals:
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