Formula: FeSO4.4H2O
Origin of name: for Z. Rozen, Polish mineralogist
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: colourless, white, yellowish white, pale yellow to greenish
Diaphaneity: transparent to translucent
Luster: dull
Habit: crystals tabular, 0.15 by 0.5 micron, microcrystalline crusts
Hardness:
Specific gravity: 2.19
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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