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CC50508

NATIVE GOLD in QUARTZ

NATIVE GOLD in QUARTZ


Size:
34 x 44 x 16 mm
Weight:
59 g
Regular price $9,500.00 USD
Regular price Sale price $9,500.00 USD
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Detailed information

Species Native Gold, Quartz
Dimensions 34 x 44 x 16 mm
Weight 59 g
Locality Brusson Mine Brusson, Ayas Valley Aosta Valley, Italy
Condition Net
Brusson mine near the Aosta Valley in northern Italy is one of the most remarkable gold deposits in Italy, if not Europe as a whole. Known since the 13th century it was during the latest years of the 19th century and early 20th century that it became more widely known for the exceptional richness of its ores, known as 'bonanza-style' gold. As with many gold deposits the gold occurs as pure metal, mineralogically termed Native Gold, but in most modern gold mines the Native Gold is almost invisible - recovered using acid leaching techniques. In 'bonanza-style' gold deposits, where gold grades can reach over 100 ozs per ton of rock, the gold is recovered by simple crushing and then gravity separation. Detailed production statistics for the mine are sparse, but between 1904 and 1909 716 kg of gold was produced and estimates for the total gold produced range from 4 to 6 tons. Preserved specimens as rich as this are unusual and at 4.4 cm tall it is extremely showy containing a very high proportion of bright visible gold forming net-like patterns within white vein Quartz. The whole specimen weighs in at 59 grams. In recent years the mine has been developed by the local authority as a tourist attraction and so it is unlikely that any new specimens will be recovered. Ex Siber and Siber Collection.

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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.