Glass (Paste) (Faceted) crystal structure
amorphous simulant

Glass (Paste) (Faceted)

SiO2 + various metal oxides (lead, barium)

Quick Facts

Hardness
5.0
Specific Gravity
2.3
Refractive Index
1.5

Crystal Structure

amorphous

Physical Properties

Crystal Systemamorphous
Hardness (Mohs)5.0
Specific Gravity2.3
FractureConchoidal
LustreVitreous

Optical Properties

Refractive Index1.5

Origin & Identification

Originsimulant

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Related Minerals

Other minerals in the amorphous system

Gilson Opal (Cabochon)
Gilson Opal (Cabochon)
SiO2*nH2O
Opal
Opal
SiO2.nH2O
Opal Doublet (Cabochon)
Opal Doublet (Cabochon)
SiO2*nH2O on dark backing
Opal Triplet (Cabochon)
Opal Triplet (Cabochon)
SiO2*nH2O between dome cap and dark backing
View all amorphous minerals →

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FundamentalsCrystal SystemsFundamentalsOptical PropertiesFundamentalsPhysical Properties