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Fluorite Beryl & Schorl

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MGR144193

Fluorite Beryl & Schorl

Description Tabs

Description
Locality: 
Bergsig Farm 167, Omaruru, Erongo Region, Namibia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.2 × 1.5 cm
Description

The "matrix" is a very glossy, sharp terminated colourless beryl crystal with brown inclusions. Set on the top of this beryl crystal a group of fluorite crystals is developed. They show satiny lustre and green colour, darker along the edges. Excellent assemble, small but a jewel.

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

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Crystal System: 
Hexagonal
Hardness: 
7.5 - 8.0
Streak: 
White

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0