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Hyalite

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MEX663602

Hyalite

Fluorescent

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 9.2 × 7.4 cm
Weight: 
444.00gr
Description

Amazing specimen, which grown up on orthoclase, and built up a thick crust of bright green fluorecent hyalite. Under the daylight you can see a weak green color, but under uv light it shows a bright green color, equal under short- oder longwave. The second picture is taken under longwave.

Mineral Data
What's on the rock

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