mineral
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
AI-generated identification · may be incorrectMohs hardness of 5, vibrant blue-green color, vitreous luster, hexagonal crystal system, poor cleavage, specific gravity of 3.1-3.2.
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Physical properties
Mohs hardness of 5, vibrant blue-green color, vitreous luster, hexagonal crystal system, poor cleavage, specific gravity of 3.1-3.2.
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through hydrothermal activity and crystallization in pegmatites.
Uses & applications
Used primarily in fertilizer production due to phosphate content, and as a minor gemstone or mineral specimen for collectors.
Geological facts
Apatite is the defining mineral for a hardness of 5 on the Mohs scale and is the main component of tooth enamel and bone in vertebrates.
Field identification & locations
Identified by its distinctive hexagonal crystal form, characteristic blue or green color, and a Mohs hardness that can be scratched with a knife.
