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Gold With Chalcopyrite & Quartz

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LGM610392

Gold With Chalcopyrite & Quartz

Ex G. Grude collection, Siegburg, Germany
With Antique Label

Description Tabs

Description
Locality: 
Mangani Mine, Sumatera Barat Province, Sumatra Island, Indonesia
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 5.5 × 3 cm
Weight: 
104.00gr
Description

Ore specimen consisting of quartz and stained chalcopyrite in matrix rock, featuring some bright yellow gold leaves.

The Mangani mine, an abandoned gold mine, operated in the years 1912-32 and again in WW II from 1940-42.

Mineral Data
What's on the rock

Gold

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
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

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.

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