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CC26593

BOURNONITE

BOURNONITE


Size:
57 x 75 x 91 mm
Regular price £12,456.00 GBP
Regular price Sale price £12,456.00 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

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Detailed information

Dimensions 57 x 75 x 91 mm
Locality Viboras Mine, Machacamarca Cornelio Saavedra Province Potosí Department, Bolivia
Condition No recorded repairs
The remote Viboras mine, at Machacamarca in Potosí Department, Bolivia first came to prominence in 2001 with the discovery of some very well crystallized twinned 'cogwheel'-type Bournonite crystals, but many were damaged, or smaller in size. Since then, there have been several new pockets discovered and now this is regarded as having produced the finest individual twinned Bournonite crystals from anywhere on Earth (although the Chinese specimens from Yaogangxian mine run it close). It is not only their size, but their sharpness and definition, their bright glossy resinous metallic lustre and how they present so perfectly on matrix that sets them apart. Some collectors still obsess over historical pedigree of 19th century British specimens but, for sheer quality, there can be no comparison. If you want to know how good the very best crystals get, then you need look no further. This cabinet-sized matrix-hosted specimen features a stunning, double-layered 6.3 cm long 'cogwheel' crystal (2.8 cm wide by 1 cm thick) parallel and on top of another slightly thicker (1.2 cm) 'cogwheel' crystal. Not only are these crystals exceptionally large for the species, but they display magnificently, rising partially up from their siliceous rock matrix, and are in incredible condition. Their stepped, cogwheel-like edges display bevelled edges and stepped parallel growth lines around the 'cogs'. This is not only a world-class crystallized Bournonite, but a reference for how great this species can be.

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We offer a number of different shipping methods, depending on locality and availability. Generally we try to ship using a courier to ensure the speedy and safe delivery of your new mineral specimen, however, other methods are available upon request.

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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.