| General Information |
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| A variety or type of: | Apatite |
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| Other Names/Trade Names: | |
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| Chemical Formula | Anthony et al, Handbook of mineralogy (2001) |
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| Physical Properties of Chlorapatite |
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| Mohs Hardness | 5Anthony et al, Handbook of mineralogy (2001) |
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| Specific Gravity | 3.17 to 3.18Anthony et al, Handbook of mineralogy (2001) |
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| Tenacity | BrittleAnthony et al, Handbook of mineralogy (2001) |
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| Cleavage Quality | PoorAnthony et al, Handbook of mineralogy (2001) |
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| Optical Properties of Chlorapatite |
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| Refractive Index | 1.665 to 1.667Anthony et al, Handbook of mineralogy (2001) |
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| Optical Character | Uniaxial/-Anthony et al, Handbook of mineralogy (2001) |
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| Pleochroism | Weak to moderate; in pale colors.Anthony et al, Handbook of mineralogy (2001) |
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| Colour |
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| Colour (General) | Greenish yellow, pinkish white, light greenish grayAnthony et al, Handbook of mineralogy (2001) |
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| Transparency | Transparent,TranslucentAnthony et al, Handbook of mineralogy (2001) |
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| Lustre | VitreousAnthony et al, Handbook of mineralogy (2001) |
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| Crystallography of Chlorapatite |
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| Crystal System | Hexagonal,MonoclinicAnthony et al, Handbook of mineralogy (2001) |
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| Habit | As prismatic hexagonal crystals, to 5 cm; granular, massive, may be in zoned intergrowths with fluorapatite.Anthony et al, Handbook of mineralogy (2001) |
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| Geological Environment |
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| Where found: | Relatively much rarer than fluorapatite or hydroxylapatite, formed in F-deficient environments. In calcsilicate marble; an accessory mineral in layered mafic intrusions; in veins through diabase; replacing triphylite in granite pegmatite. In meteorites.Anthony et al, Handbook of mineralogy (2001) |
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| Further Information |
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| Mineral information: | Chlorapatite information at mindat.org |
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