Formula: Mg2B2O5
Origin of name: after locality Suan County, North Korea
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 12.31, b = 3.12, c = 9.2, β = 104.33°
Colour: white, gray white
Diaphaneity:
Luster: silky to pearly
Habit: fibrous aggregates
Hardness: 5.5
Specific gravity: 2.91
Cleavage: 1; prismatic, perfect
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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