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Fluorite & Schorl

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MGR822822

Fluorite & Schorl

Floater

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.8 × 2.3 × 2.4 cm
Description

The specimen consists of inter-grown modified elongated crystals, which formed this amazing assemble. The crystals show excellent clarity - in the center you can see a green "faden" - this is really exceptional and very rare! The dark zoning along some edges are purple, the crystals showa light green-blue color. Minor schorl is inter-grown. The specimen is developed as floater and complete all around. A few tiny yellow muscovite crystals are also present. Faden-Fluorite in this dimension and quality is out-standing and should be high valued for these indicators.

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

Schorl

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