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Gold With Quartz & Baryte & Cassiterite

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LGM645418

Gold With Quartz & Baryte & Cassiterite

ex Marcus Lueg personal collection
New Discovery

Description Tabs

Description
Locality: 
Siglo Veinte Mine, Llallagua, Rafael Bustillo, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 6 × 2.5 cm
Weight: 
36.00gr
Description

Specimen from old finds at Siglo Veinte Mine, Llallagua, Bolivia, which features nice gold wires and flakes richly scattered over the whole specimen. Lots of beautiful details are visible under magnification, some of the gold flakes are encrusted by an unidentified grey mineral. Accompanied by quartz, white translucent, tabular crystals (likely baryte) and minor black cassiterite.

The specimen was originally obtained from the son of an old geologist of the mine, only 3 specimens were offered (personal notification of the seller). According to mindat, Gold is not described for Siglo Veinte Mine (Siglo XX Mine) so far, so this was likely a very small one-time find in the 70's or 80's.

Mineral Data
What's on the rock

Gold

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

Quartz

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

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0

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

+++IMPORTANT+++
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