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Electrum With Polybasite

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QRI672126

Electrum With Polybasite

Former Shirley Adrian, former Richard Barstow
Rare Mineral

Description Tabs

Description
Locality: 
Silbak Premier Mine, Stewart, Skeena, British Columbia, Canada
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 6.5 × 3.2 cm
Description

Rich specimen of granular crystalline electrum crystals in quartz rich matrix. Electrum comes in golden color crystals, with good lustre. Polybasite is in crystal portions within thicker quartz matrix. Exceptionally rich, it could be etched in strong acids to highlight further crystals. From a recently acquired collection. Former Adrian collection, and former Barstow stock (green label).

Previous labels supplied (not photographed)
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

Polybasite

Formula: 
[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.5 - 3.0
Streak: 
black

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Shipping within 15 days after payment received, unless specified/agreed otherwise.

NOTE:
Due to a very busy holiday schedule, specimens paid after Dec 14 will be shipped by Januar 7. For any information or combined shipping please contact me.

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