Laurelite

Formula:  Pb2F12Cl2

Origin of name:  After locality; Laurel Canyon, Arizona, U.S.

 

Crystal system:  Hexagnoal

Crystal class:  -6

Twinning: 

Unit cell: 

 

Colour:  Colourless

Diaphaneity:  Transparent

Luster:  Silky

Habit:  Prismatic needles to 10 mm long x 0.05 mm across, grouped in bundles

Hardness:  2

Specific gravity:  6.2

Cleavage:  1; {001} imperfect

Tenacity: 

Streak:  White

 

Synonyms/varieties:

 

Comments: 

 

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