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Opal-CT

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SHS119717

Opal-CT

Description Tabs

Description
Locality: 
Polatli, Ankara Province, Turkey
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.6 × 2.2 cm
Description

Opal with microcrystalline blades of cristobalite and/or tridymite

Mineral Data
What's on the rock

Opal-CT

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
0.0