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Quartz On Galena

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CLB530557

Quartz On Galena

Classic Locality

Description Tabs

Description
Locality: 
St. Andreasberg, Lower Saxony, Germany
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.1 × 5.6 × 3.8 cm
Description

Big glossy quartz crystals - most of them double-terminated - on a massive cluster of galena crystals, partially encrusted with a layer of greenish-yellowish microcrystals (probably mimetite-pyromorphite-series).

Unfortunately some quartz crystals show some dings.

I had to dim the lights to make the edges visible.

Mineral Data
What's on the rock

Quartz

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

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

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