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Chalcedony Psm Fluorite

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CLB166073

Chalcedony Psm Fluorite

ex collection R. + P. Schilling
Pseudomorph

Description Tabs

Description
Locality: 
Silberberg, Todtnau, Black Forest, Baden-Württemberg, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 7.3 × 3.4 cm
Description

A very rare epimorph of pale blueish chalcedony after fluorite. Very sharp edges of the dissolved fluorite crystals. The surfaces of the remaining chalcedony are partially spotted with very nice, tiny pale blue chalcedony bubbles with a white core. Very attractive.

Mineral Data
What's on the rock

Chalcedony

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Kadıköy (Chalcedon), Istanbul Province, Marmara Region, Turkey

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

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