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Quartz Fluorite & Dolomite

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RPN98138

Quartz Fluorite & Dolomite

Description Tabs

Description
Locality: 
Băiuț, Maramureș County, Romania
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 4 × 2.5 cm
Largest Crystal: 
3.00cm
Description

Specimen with matrix mainly consisting of pyrite and an overgrowth by two different generations of rock crystall. One side of the quartz is partially covered by sharpedged dolomite crystalls. On the specimen there are several hexahedral crystals of colorless fluorite. Nice specimen found in the 1970s.

Mineral Data
What's on the rock

Quartz

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

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White
minhunter

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