Carbonate-hydroxylapatite

Formula:  Ca5(PO4,CO3)3(OH)

Origin of name:  From carbonate, hydroxide, and the apatite series

 

Crystal system:  Hexagonal

Crystal class:  6/m

Twinning:

Unit cell:

 

Colour:  Colourless to white

Diaphaneity:

Luster:

Habit:  Crystals short to long prismatic, acicular; granular, massive, globular, reniform, stalactitic, fibrous, earthy

Hardness:  5

Specific gravity:  3.05

Cleavage:  2; {0001} indistinct, {10-10} trace

Tenacity:

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Comments:

 

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