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CC29531

MONTEBRASITE

MONTEBRASITE


Size:
68 x 68 x 20 mm
Weight:
116 g
Regular price $750.00 USD
Regular price Sale price $750.00 USD
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Detailed information

Species Montebrasite
Dimensions 68 x 68 x 20 mm
Weight 116 g
Locality João Firmino claim, Linópolis, Divino das Laranjeiras Minas Gerais, Brazil
Condition No recorded repairs
Montebrasite is a rare lithium aluminium phosphate hydroxide which forms a series with Amblygonite. Both occur in lithium-bearing granitic pegmatites. Remarkably, for a rare species, Montebrasite crystals to a metre in size have been recorded, but actually any sort of crystal is rare, and those larger crystals tend to be heavily distorted. Some of the best crystals have come from lithium-rich pegmatites in Brazil, and João Firmino claim, at Linópolis, Divino das Laranjeiras, Minas Gerais, where this specimen comes from, has produced some very good examples. This matrixless individual crystal is a quite substantial 6.8 x 6.8 cm in size and is from the the superb systematic collection assembled by the brothers Martin and Michael Günther (1951-2007 & 1956-2021). It is glassy, translucent to transparent and with a very pale yellow hue. The front crystal faces are well-formed, but around the edges the crystal is slightly serrated. Nevertheless, this is a good example of a rarely seen pegmatitic species.

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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.