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Hyalite

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KOV810477

Hyalite

Fluorescent

Description Tabs

Description
Locality: 
Monok, Zemplén Mountains, Borsod-Abaúj-Zemplén County, Hungary
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.8 cm
Weight: 
10.40gr
Description

Hyalite in Rhyolite geode. Very nice fluorescence under short UV light. Self-collected in 2002.

Collected: 
2002
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