Formula: (Mn,Fe,Mg)Al2(PO4)2(OH)2 . 8H2O
Origin of name: From manganese and gordonite
Crystal system: Triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: Colourless to faintly yellow
Diaphaneity: Transparent
Luster: Vitreous pearly on {100}
Habit: Nearly equant bladed crystals to 2 mm, divergent aggregates to 1mm
Hardness: 3
Specific gravity: 2.36
Cleavage: 1; {010} perfect
Tenacity:
Streak: White
Synonyms/varieties:
Comments: Mn analogue of gordonite
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