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Great Britain, Cumberland, Dry Gill, Caldbeck Fells.

Extreme rare, military green mimetite crystals from a very old collection (with label);  there is a second unknown mineral with blue / green needles. Origin: Great Britain, Cumberland, Dry Gill, Caldbeck Fells.
The mine is closed for many years. Dimensions: 45x40x25 mm. Weight 0,044 kilogramme.

€ 92.00

Stock: 1

Article code: VII.B.39160.008


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Mimetite is formed in the oxidized zones of hydrothermal deposits as a result of the oxidation and decomposition of lead ores, as well as in the presence of lennantite, arsenopyrite, or any other arsenides and sulfoarsenides. It is a rare mineral. Mimetite forms a mineral series with pyromorphite and with vanadinite.
The most notable occurrences are Tsumeb, Namibia and Mapimi, Durango, Mexico. But ... isn't did a beauty also?