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Spinel
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Fluorapatite
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Gemstones
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X
Spinel
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Fluorapatite
Spinel
Fluorapatite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
-
-
-
3.64-3.66
Conchoidal, Uneven
None, but may exhibit slight parting
8
MgAl
2
O
4
-
-
-
3.1-3.25
Uneven
Indistinct
5
Ca 5(PO 4) 3FAnthony et al , Handbook of mineralogy (2001)
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Fluorapatite Vs Opal
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