Farringtonite

Formula:   Mg3(PO4)2

Origin of name:   For O. Farrington, American museum curator

 

Crystal system:   Monoclinic

Crystal class:   2/m

Twinning:

Unit cell: 

 

Colour:  White to yellow

Diaphaneity:

Luster:

Habit:   Massive

Hardness:

Specific gravity:   2.74

Cleavage:   2; {100} and {010} fair to good

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments:   From a meteorite

 

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