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Fluorite Quartz Siderite & Galena

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PDM982295

Fluorite Quartz Siderite & Galena

Classic Locality

Description Tabs

Description
Locality: 
Boltsburn Mine, Rookhope, Weardale, County Durham, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.9 × 3.8 × 3.5 cm
Weight: 
72.00gr
Description

Lustrous twinned crystals of fluorite, quite transparent and of a light lilac colour, that show strong fluorescence under long and short UV light. They are associated by bright dipyramidal quartz crystals, dark grey galena at the matrix and tiny saddle-shaped siderite crystals to 2 mm.

Acquired in the early 1980’s by Ludo Van Goethem.

Combine specimens to reduce shipping costs!.

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

Quartz

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

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
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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