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Fluorite Pyrite & Galena

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MGR553124

Fluorite Pyrite & Galena

Description Tabs

Description
Locality: 
Naica, Saucillo Municipality, Chihuahua, Mexico
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
10.1 × 8 × 7.7 cm
Description

The main crystal is about 54 x 50mm. It is set in the center and very exposed. The habit is typical; a combination of cube and rhomb. The crystals are light and colorless (better transperency in person, more clear, less white). The faces are lustrous, all edges are sharp terminated. Inside and at the back you can see dark green fluorite, some galena crystals are also present at the sides and at the reverse and finally minor pyrite is intergrown. An impressive, fine combination from this famous locality.

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Galena

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