Formula: (NH4)(Al,Fe)(SO4)2
Origin of name: For Alexandr Godovikov, Russian mineralogist
Crystal system: Hexagonal
Crystal class: 32
Twinning:
Unit cell:
Colour: White
Diaphaneity:
Luster: Dull
Habit: Fine hairs 0.001-0.015 mm forming compact or porous chalky aggregates
Hardness: 2
Specific gravity: 2.53
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Slowly soluble in water
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