Formula: AgBr
Origin of name: From composition
Crystal system: Cubic
Crystal class: 4/m -3 2/m
Twinning: Uncommon on {111}
Unit cell: a = 5.775 Ǻ
Colour: Gray, greenish gray, greenish brown, yellowish
Diaphaneity:
Luster: Resinous to adamantine, waxy
Habit: Crystals usually cubic; massive, crusts, columnar or fibrous
Hardness: 2.5
Specific gravity: 6.474
Cleavage: None
Tenacity: Subconchoidal to uneven; sectile
Synonyms/varieties: Bromyrite, embolite
Comments:
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