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Opal Var Hyalite Opal

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AST518868

Opal Var Hyalite Opal

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Description Tabs

Description
Locality: 
Mytilene, Lesbos Island, North Aegean, Greece
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.5 × 2.2 cm
Description

Very fine cluster of water clear hyalite forming botryoidal aggregates and spheres on trachyte rock matrix.From a recent find at Lesvos island.It's not easy to find such specimens available as almost all hyalite occurencies at Lesvos are in private lands and permission is hardly given.

Mineral Data
What's on the rock

Opal

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

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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