Formula: KFe(SO4)2 . 4H2O
Origin of name: For S. Goldich, American mineralogist
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Pale yellowish green; lavender tint under artificial light
Diaphaneity:
Luster:
Habit: Crystals prismatic, lath-like; singles and radiating clusters; crusts, fine-grained crystalline
Hardness: ~ 2.5
Specific gravity: 2.43
Cleavage: 1; {100} perfect
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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