Fluorcaphite

{{Short description|Apatite, phosphate mineral}} {{Infobox mineral | name = Fluorcaphite | boxwidth = | boxbgcolor = | image = Fluorcaphite-111341.jpg | imagesize = | alt = | caption = | struct image = | struct caption = | struct imagesize = | struct2 image = | struct2 caption = | struct2 imagesize = | SMILES = | Jmol = | category = | 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 ų (calculated from unit cell) | color = | colour = Light to bright yellow | habit = Prismatic, subhedral crystals | twinning = | cleavage = | fracture = Sub-conchoidal | tenacity = Brittle | toughness = | mohs = 5 | luster = Vitreous | streak = White | diaphaneity = Transparent | gravity = | density = 3.60 | polish = | opticalprop = | refractive = | birefringence = 0.012 | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | Curie temp = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = }} '''Fluorcaphite''' is a mineral with the chemical formula {{chem2|(Ca,Sr,Ce,Na)5(PO4)3F}}.<ref name=Webmin>[http://webmineral.com/data/Fluorcaphite.shtml Fluorcaphite on webmineral.com]</ref> It is found in the Kola Peninsula in Russia.<ref>[http://rruff.geo.arizona.edu/doclib/hom/fluorcaphite.pdf Fluorcaphite on Handbook of Mineralogy]</ref> 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.<ref>[http://www.mindat.org/min-6948.html Fluorcaphite on Mindat.org]</ref> Fluorcaphite is radioactive.<ref name=Webmin/>

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Category:Calcium minerals Category:Strontium minerals Category:Lanthanide minerals Category:Sodium minerals Category:Phosphate minerals Category:Hexagonal minerals Category:Minerals in space group 173 Category:Fluorine minerals {{phosphate-mineral-stub}}