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Hyalite On Quartz

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RAF624322

Hyalite On Quartz

Fluorescent

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 5.5 × 4 cm
Largest Crystal: 
2.20cm
Weight: 
112.00gr
Description

A unique specimen of hyalite crystals growing on quartz  that came out from Erongo Mountains.  Fluorescent...

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White