amorphous simulant general simulant
Glass (Paste) (Faceted)
SiO2 + various metal oxides (lead, barium)
Quick Facts
Hardness
5.0
Specific Gravity
2.3
Refractive Index
1.5
Optical Character
Isotropic (amorphous)
Crystal Structure
amorphous
Physical Properties
Crystal Systemamorphous
Hardness (Mohs)5.0
Specific Gravity2.3
FractureConchoidal
LustreVitreous
Optical Properties
Refractive Index1.5
Optical CharacterIsotropic (amorphous)
FluorescenceVariable
Origin & Identification
Originsimulant
Diagnostic FeaturesGas bubbles (round, elongated, or clustered), swirl marks (flow lines), conchoidal fracture with vitreous lustre, warm to touch (low thermal conductivity), may show orange flash under Chelsea filter, single refractive, hardness only 5-6
Colours
All colours (by metal oxide doping)
Common Inclusions
Gas bubblesSwirl marks (flow lines)Devitrification patches
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