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CC26955

PACHNOLITE with THOMSENOLITE

PACHNOLITE with THOMSENOLITE


Size:
80 x 105 x 70 mm
Weight:
512 g
Regular price $8,500.00 USD
Regular price Sale price $8,500.00 USD
Sale Sold out
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Detailed information

Species Pachnolite, Thomsenolite
Dimensions 80 x 105 x 70 mm
Weight 512 g
Locality Ivigtut Cryolite Deposit Ivittuut (Ivigtut), Arsuk Fjord Sermersooq, Greenland
Condition No recorded repairs
This larger, cabinet-sized display specimen is something most National Museums would like to have in their collection. To the untrained eye it might look like a piece of white Quartz with a rusty coating of iron oxides, but it is infinitely rarer. This is an incredibly rare larger specimen of perfectly crystallized Pachnolite and Thomsenolite from the Type Locality of both species - Ivigtut Cryolite Deposit, Greenland. Both species are polymorphs of hydrated sodium calcium aluminofluoride. Remarkably, as polymorphs, they are both also monoclinic in form and do on occasion get mis-identified, but this magnificent specimen allows the comparison of both crystal forms. If you study the specimen carefully you will see that the main body of the specimen is white to colourless Thomsenolite forming blocky, but tapering crystals with square-section terminations. The largest of these reach 1 cm across. Upon these, and often with a later rusty orange coating are tapering pointed prismatic crystals which are Pachnolite. These reach 4 mm in length and completely line a 4 x 1.5 cm cavity. There are very few richer specimens of these two important Type Species in private hands and even less for sale. It is from the superb systematic collection assembled by the brothers Martin and Michael Günther (1951-2007 & 1956-2021).

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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.