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CC7688

XANTHOCONITE with PROUSTITE and STEPHANITE

XANTHOCONITE with PROUSTITE and STEPHANITE


Size:
60 x 55 x 46 mm
Regular price $9,500.00 USD
Regular price Sale price $9,500.00 USD
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Detailed information

Species Xanthoconite, Proustite, Stephanite
Dimensions 60 x 55 x 46 mm
Locality Jáchymov (St. Joachimsthal) Krušné Hory Mts (Erzgebirge) Karlovy Vary, Bohemia, Czech Republic
Condition No recorded repairs
An old and very rare specimen of the rare silver mineral Xanthoconite with abundant intense gemmy red crystals of Proustite and rare Stephanite on botryoidal Native Arsenic with Calcite, from the old mining district of Jáchymov, Czechia. Rare scattered gemmy to opaque lustrous orange micro-crystal clusters of Xanthoconite to 1 mm are formed on a wonderfully sculptural botryoidal mass of dull grey Native Arsenic. Crystals of very lustrous ruby-red prismatic-pyramidal Proustite are also scattered and clustered over the Native Arsenic. In rare association are intergrown crystals of metallic grey Stephanite. White lustrous platy crystals of Calcite are intergrown with the Native Arsenic too. The specimen comes with an American Museum of Natural History label, and two photocopies of old labels, one of which indicates that the museum acquired it from Dr Lothar Burghardt (1883-1956) in 1921, but another label suggests that it dates to the 19th century. This is a remarkably beautiful display specimen of these rare silver species and with such great historic provenance just adds to its enormous class.

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I bought a specimen but it is not what I expected or was damaged in transit. Can I return the specimen?

Inevitably, sometimes things don't go as expected. Whether the specimen is damaged in transit or the identity is incorrect, we are aware that this can result in the return of a specimen.If your specimen is damaged during shipping, it is vitally important to take a photo of the packaging and specimen in situ. By recording this, we get an idea of the nature and possible reason behind the damage and will be able to process the return much faster.If you discover that the mineral species has been misidentified, we require details of the method of identification in order to understand why you believe this to be the case. If the identity is in question but no formal analysis has been attempted, Crystal Classics will assess the situation on a case-by-case basis. In some instances, this may mean the specimen is sent for analysis to determine the identity.In any scenario where a specimen is analysed and the species in question is not present on the specimen, we will provide a full refund.If you feel that the specimen was misrepresented in any way, please ensure you make contact with us within the 30 day grace period for resolution.In all instances, please ensure that you call or e-mail us immediately, prior to the return of a specimen to Crystal Classics, so that we can advise regarding the returns procedure. Failure to contact us prior to the return of a specimen may lead to the rejection of your return.Shipping costs of all returns are to be covered by the customer, unless the specimen was damaged in transit or if the identity is incorrect.