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CC49630

STILBITE-(Ca) on CALCITE

STILBITE-(Ca) on CALCITE


Size:
45 x 70 x 35 mm
Weight:
93 g
Regular price $500.00 USD
Regular price Sale price $500.00 USD
Sale Sold out
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Detailed information

Species Stilbite-(Ca), Calcite
Dimensions 45 x 70 x 35 mm
Weight 93 g
Locality Helgustadir Mine Reyðarfjörður, Fjarðabyggð Eastern Region, Iceland
Condition No recorded repairs
Helgustadir mine on the east coast of Iceland is the world-famous source of optical grade double-refractive Calcite, known as 'Iceland Spar'. It's optical properties have been known since 1669, but official mining began in 1855 and ended in 1925. Since 1975 the site has been a national monument with collecting strictly forbidden. This lovely large miniature specimen was collected pre-1975 and has been in David Hardman's fine collection of worldwide zeolites since then. It consists of a well-formed rounded rhombic crystal of Calcite, 4.6 cm across, with natural etched faces (so no double-refraction visible), but one side it covered in perfect, cream coloured, flat, bladed Stilbite crystals. The Stilbite crystals are in great condition and reach nearly 1 cm in length. Zeolites from Helgustadir mine are now so rarely seen for sale, just the occasional quality specimen in older collections that become available.

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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.