Difference between revisions of "Template:Apatite"

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| Habit || Prismatic
 
| Habit || Prismatic
 
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| Cleavage || Imperfect
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| Cleavage || Imperfect, basal
 
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| Fracture || Conchoidal
 
| Fracture || Conchoidal

Latest revision as of 10:29, 3 June 2007

Apatite
Chemical composition Ca5(PO4)3(F,Cl,OH)
Crystal system Hexagonal
Habit Prismatic
Cleavage Imperfect, basal
Fracture Conchoidal
Hardness 5
Optic nature Uniaxial -
Refractive index 1.63-1.64
Birefringence 0.003
Dispersion Low, 0.013
Specific gravity 3.2
Lustre Vitreous
Pleochroism Weak