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Bournonite Arsenopyrite & Quartz

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PJM37127

Bournonite Arsenopyrite & Quartz

Description Tabs

Description
Locality: 
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.7 × 3.8 × 3.2 cm
Description

This is an extremely complex mineralogy for nice a nice miniature; a matrix consisting of crystalline sphalerite, galena. chalcopyrite, all over which appear as crystals on the matrix are dominated by arsenopyrite in a number of different forms, amongst these crystal are cogwheels of bournonite and contrasting white clusters of flower like quartz crystals.

Wait you want more?! Sorry no steak knives, but we have has some unidentified carbonates scattered around the specimen

Mineral Data
What's on the rock

Bournonite

Formula: 
PbCuSbS3
Strunz: 
2.GA.50
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Wadebridge District, Cornwall, England, UK

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Quartz

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

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