Formula: CaZn2Si2O7 . H2O
Origin of name: For Jun Ito, Japanese - American mineralogist
Crystal system: Orthorhombic
Crystal class: mm2
Twinning:
Unit cell:
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous
Habit: Crystals platy, hemimorphic
Hardness: 4.5
Specific gravity: 3.5
Cleavage: 3; {010} and {101} poor; {010} good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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