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Fluorite & Galena

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TWH538043

Fluorite & Galena

Fluorescent

Description Tabs

Description
Locality: 
Rogerley Mine, Frosterley, Weardale, County Durham, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.3 × 6.2 × 1.6 cm
Largest Crystal: 
0.70cm
Description

clusters of multiple twinned light green crystals display light blue fluorescence under shade of daylight and strong blue color under an ultraviolet light. There are also tiny crystals of galena presence on the matrix.

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Galena

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