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Hyalite

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MGR215138

Hyalite

Description Tabs

Description
Locality: 
Monok, Zemplén Mountains, Borsod-Abaúj-Zemplén County, Hungary
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.8 × 3.5 cm
Description

Hyalite reminds to material from Valec in Czech republic, but from Hungary it is much more rare and uncommon. In the center it is light blue, framed with colorless and glassy hyalite. Finally framed by red-brown matrix. Very fine contrast, undamaged. Should be high ranked for it´s rarity.

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