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Bournonite & Quartz

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HJZ602040

Bournonite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Yaogangxian Mine, Hunan Province, China (Peoples Republic)
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 2.7 × 2 cm
Description

From the finds in 1999-beginning of the 2000's. Before they were found bournonite crystals of this size were unheard of. The amazed the mineralogical society then. Most have a lot of damage but this one is relatively clean except some ratbites but a good termination.

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

Quartz

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

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