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Sphalerite & Quartz

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MNT580418

Sphalerite & Quartz

Classic Locality

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Description
Locality: 
Auguste-Victoria Mine, Marl-Hüls, Ruhr, North Rhine - Westphalia, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 4.3 × 2.3 cm
Weight: 
89.00gr
Description

German classic and quite rare: dark brown to blackish sphalerite crystals host whiteish quartz crystals. The specimen was found in a coal mine in the Ruhr region within a mineralized fault zone which was so rich in ore minerals that it was mined for some time for Pb and Zn ore. The ore vein („William-Köhler-Gang“) was found in 1930, mining started in 1938 and lasted until 1962. In total 5,5 million tons of Pb-Zn ore and 400 tons of silver were recovered during that time. Within the 1950s almost 20 % of the (west) german base metal ore production came from Auguste Victoria.

Found 10. June 1961.

Mineral Data
What's on the rock

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Seller Information

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Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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