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Gold In Quartz

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MSD896230

Gold In Quartz

Description Tabs

Description
Locality: 
Indian Gulch Mine, Santa Cruz Mountain, West Belt, Mariposa County, California, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.5 × 2 cm
Weight: 
54.00gr
Description

Here we have a relatively rich gold specimen from the Indian Gulch Mine, located in Mariposa county, California, which is probably known only to well-informed collectors.
After measurements by using of an uncalibrated digital balance and calculations with the formula ((difference of (weight in air x 1.9) and (weight in water x 3.1)) the gold content should be more or less about 8 g - of course without any guarantee.
In any case, this is an attractive, rarely offered gold piece from a small mining operation. Acquired from an old Italian mineral collector who does not want to be mentioned by name.

The stated weight includes the acrylic base.

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