Formula: FeAs3O9 . 6-8H2O
Origin of name: After locality; Kaatiala pegmatite, Juortane, Finland
Crystal system: Monoclinic
Crystal class: 2 or 2/m
Twinning:
Unit cell:
Colour: Gray to yellow
Diaphaneity:
Luster:
Habit: Powdery coatings
Hardness:
Specific gravity: 2.64
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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