Formula: (Mg,Fe)2(PO4)F
Origin of name: for F.M. von Wagner (1768-1851), German mining official in Munich
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 9.644, b = 12.679, c = 11.957, β = 108.3°
Colour: Yellow, grayish, greenish, yellowish red to brick brown
Diaphaneity: Transparent to translucent
Luster: Vitreous to resinous
Habit: Crystals prismatic, striated vertically, may be large and rough, massive
Hardness: 5 to 5.5
Specific gravity: 3.15
Cleavage: 3; {100} and {120} imperfect, {001} traces/poor
Tenacity: Splintery fracture
Streak: White
Synonyms/varieties: Kjerulfine, magniotriplite
Comments:
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