Formula: Na4Ca8(Ti,Zr,Mn)3Si8O28F8
Origin of name: After locality; Hohe Hain Mountains, Bohemia, Czech Republic
Crystal system: Triclinic
Crystal class: -1
Twinning:
Unit cell:
Colour: Wine-yellow to colourless
Diaphaneity: Semitransparent
Luster: Vitreous to adamantine
Habit: Crystals; slender needles and plates, less than 1 mm
Hardness: 5
Specific gravity: 3.15
Cleavage: 2; {010}perfect, {100} faint
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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