Formula: (Mn,Mg)9Fe3(PO4)8(OH)3 . 9H2O
Origin of name: For K. Landes, American geologist
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Brown
Diaphaneity:
Luster:
Habit: Crystals octahedral-like pseudomorphs of reddingite
Hardness: 3 to 3.5
Specific gravity: 3.03
Cleavage: 1; {010} distinct
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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