Formula: (Ca,Na)8Al4Si6O23(PO4,CO3,SO4,F,Cl,OH)2
Origin of name: from Greek for flesh
Crystal system: tetragonal
Crystal class: 4/m
Twinning:
Unit cell: a = 12.343, c = 15.463
Colour: yellowish red
Diaphaneity: translucent to transparent
Luster: vitreous
Habit: crystals nearly equant, irregular masses
Hardness: 6
Specific gravity: 2.91-2.96
Cleavage:
Tenacity: Brittle, conchoidal
Streak: White
Synonyms/varieties:
Comments:
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