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Electrum In Quartz

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BRT168795

Electrum In Quartz

Description Tabs

Description
Locality: 
North Island, New Zealand
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.8 × 2.5 cm
Description

Electrum in quartz from Kuranui Hill, Thames bonanza goldfield, New Zealand. The sample comes from near the original discovery location of gold rich reefs at Thames which were initially discovered in a waterfall exposure in Kuranui Creek (8th August 1867) and became the site of the Shotover claim. Mining at Thames encountered 6 main bonanzas as well as numerous smaller and localised gold-rich pockets. The gold finess of electrum is reported by Fraser 1910 for the Thames area as 0.625 to 0.75 and averages 0.67 for the bonanzas. This sample was discovered in more recent times (~last 30 years).

Mineral Data
What's on the rock

Electrum

Variety Of: 

Gold

Formula: 
Au
Strunz: 
1.AA.05
Hardness: 
2.5 - 3.0
Formula: 
(Au, Ag)
Strunz: 
1.AA.05
Hardness: 
0.0

Quartz

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

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