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Native Copper

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LGM734538

Native Copper

Ex Dr. Krantz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
Quincy Mine, Hancock, Houghton County, Michigan, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
4.5 × 8 × 4 cm
Weight: 
129.00gr
Description

Specimen featuring sheets of native copper in matrix rock.

From old Dr. Krantz stock, comes with antique label. An important historic specimen: "Quincy Mine, Hancock, Houghton Co., Michigan, USA" was an underground copper mine that began exploration in 1846 and organized in 1848. Began operations working a fissure vein of native copper until 1856 when the Pewabic amygdaloid (see label) lode was discovered crossing the property. Operated continuosly from 1848 to 1931, re-opened from 1937 to 1945 (cit. mindat). "Amygdaloid" may refer to small amygdaloid white quartz inclusions in the matrix rock (pics 3,4).

Mineral Data
What's on the rock

Copper

Formula: 
Cu
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

If for any reason you are not happy with any aspect of your transaction, please let me know as soon as possible, ideally within 1 week of receiving your specimen.

I will happily do all in my power to resolve the situation to your satisfaction.

+++IMPORTANT+++
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