Paulingite

Formula: (K,Na)₂Ca(Si₁₃Al₄)O₃₄.13H₂O

Origin of name: for Linus Pauling, American chemist

Crystal system: cubic

Crystal class: 4/m -3 2/m

Twinning: 

Unit cell: a = 35.1 Å

Colour: colourless

Diaphaneity: transparent

Luster: vitreous

Habit: crystals rhombic, dodecahedral, small

Hardness: about 5 (approximate)

Specific gravity: 2.09

Cleavage: none

Tenacity: 

Streak: 

Synonyms/varieties:

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