Formula: Na5Zr2Si6O18(Cl,OH).2H2O
Origin of name: for Peter Tarasoff, Canadian amateur mineralogist
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: greenish-yellow, yellow, brown
Diaphaneity: transparent, translucent, opaque
Luster: vitreous
Habit: crystals equant, doubly terminated to 6.5 cm
Hardness: 5 to 5.5
Specific gravity: 2.9
Cleavage: none
Tenacity:
Streak: white
Synonyms/varieties:
Comments:
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