Formula: (Ca,Mn)4(Fe,Mn)Al4(PO4)6(OH)4 . 12H2O
Origin of name: After locality; Kings Mountain, North Carolina
Crystal system: Monoclinic
Crystal class: 2
Twinning:
Unit cell: a = 10.03 Ǻ, b = 24.46 Ǻ, c = 6.26 Ǻ, β = 91.2°
Colour: White to light brown
Diaphaneity:
Luster: Pearly
Habit: Crystals bladed, radiating sprays to 2 mm
Hardness: 2.5
Specific gravity: 2.51
Cleavage: None
Tenacity:
Streak: White
Synonyms/varieties:
Comments:
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