fluorcaphite
{{Short description|Apatite, phosphate mineral}}
{{Infobox mineral
| name = Fluorcaphite
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| image = Fluorcaphite-111341.jpg
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| formula = {{Format molecular formula|SrCaCa3(PO4)3F}}
| molweight = 671.38
| strunz = 7/B.39-95
| dana =
| system = Hexagonal
| class = Dipyrimidal
| symmetry = P63 (No. 173)
| unit cell = 545.39 Å3 (calculated from unit cell)
| color =
| colour = Light to bright yellow
| habit = Prismatic, subhedral crystals
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| fracture = Sub-conchoidal
| tenacity = Brittle
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| mohs = 5
| luster = Vitreous
| streak = White
| diaphaneity = Transparent
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| density = 3.60
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| birefringence = 0.012
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Fluorcaphite is a mineral with the chemical formula {{chem2|(Ca,Sr,Ce,Na)5(PO4)3F}}.[http://webmineral.com/data/Fluorcaphite.shtml Fluorcaphite on webmineral.com] It is found in the Kola Peninsula in Russia.[http://rruff.geo.arizona.edu/doclib/hom/fluorcaphite.pdf Fluorcaphite on Handbook of Mineralogy] Its crystals are hexagonal (dipyramidal class) and are transparent with a vitreous luster. It is light to bright yellow, leaves a white streak and is rated five on the Mohs Scale.[http://www.mindat.org/min-6948.html Fluorcaphite on Mindat.org] Fluorcaphite is radioactive.