Formula: MnFe2(PO4)2(OH)2.7-8H2O
Origin of name: from Greek pseudo = false and laueite
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 9.60 Å, b = 7.42 Å, c = 10.17 Å, b = 104.4°
Colour: orange-yellow
Diaphaneity:
Luster: vitreous
Habit: crystals prismatic to thick tabular
Hardness: 3
Specific gravity: 2.463
Cleavage: none
Tenacity: brittle
Streak:
Synonyms/varieties:
Comments:
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