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Gold On Erythrite

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CYF812835

Gold On Erythrite

Description Tabs

Description
Locality: 
Taghouni Mine, Taghouni, Bou Azzer, Ouarzazate Province, Drâa-Tafilalet Region, Morocco
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 3 cm
Description

From a small one off find back in 2017, Gold wires (var Electrum) on an Erythrite coated matrix from Morocco. Analysis of the gold was shown to be electrum with a silver content of approximately 25-30%. This is a very rare association and one I have not seen from any other location.
The gold occurs mostly as wires, with some filagree forms also.

Mineral Data
What's on the rock

Gold

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

Erythrite

Formula: 
Co3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
1.5 - 2.5
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany