Formula: SiO2
Origin of name:
Crystal system:
Crystal class:
Twinning:
Unit cell:
Colour:
Diaphaneity:
Luster:
Habit:
Hardness: 6.5
Specific gravity:
Cleavage:
Tenacity:
Streak:
Synonyms/varieties: Fulgurite
Comments: IMA status questionable/doubtful. Natural fused silica due lightning striking sand
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