Formula: Ca6Si6O17(OH)2
Origin of name: locality Tetela de Xonotla, Mexico
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour:
Diaphaneity:
Luster: pearly, greasy
Habit: crystals acicular, matted, parallel fibrous, massive, compact
Hardness: 6
Specific gravity: 2.71
Cleavage: 1; good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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