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Smoky Quartz With Todorokite Fluorite & Hyalite

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LGM95134

Smoky Quartz With Todorokite Fluorite & Hyalite

ex Ralf Wartha Collection, Windhoek
Fluorescent

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Description Tabs

Description
Locality: 
Ameib Farm 60, Usakos, Karibib, Erongo Region, Namibia
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 8.5 × 2.5 cm
Largest Crystal: 
4.50cm
Description

Smoky quartz is encrusted by black todorokite and white fluorescent hyalite at the tips, and several insensive green fluorite cubes (deeper color than on the pictures) are perched over the right side of the specimen. Nice contrast. Weight: 72 grams

Mineral Data
What's on the rock

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0

Todorokite

Formula: 
(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12·3H2O
Strunz: 
4.DK.10
Hardness: 
1.5
Type Locality: 
Todoroki mine, Yoichi, Shiribeshi Province, Hokkaido, Japan

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

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

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