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Blue Chalcedony Psm Fluorite

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CLB543723

Blue Chalcedony Psm Fluorite

Pseudomorph

Description Tabs

Description
Locality: 
Trestia, Maramureș County, Romania
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 3.5 × 2.3 cm
Description

Very beautiful pseudomorph of blue chalcedony after fluorite. The microcrystaline surface structure gives the specimen a frosted look. The color is very nice - the typical chalcedony blue - but can't be reproduced correctly. Backlit it appears some pale pinkish with warm light, dull grayish with photo 'daylight'.

In nature  much nicer I'd say. The 'rough' surface almost vanishes when viewed without macro lens/magnifying tools.

Mineral Data
What's on the rock

Blue Chalcedony

Variety Of: 

Chalcedony

Hardness: 
6.5 - 7.0
Hardness: 
0.0

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

Seller Information

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