{{Infobox mineral | name = Olgite | boxwidth = | boxbgcolor = | image = Olgite.jpg | imagesize = | alt = | caption = Very dark green crystals of the rare phosphate mineral olgite from the type locality in Kola (Karnasurt Mountain, Lovozero Massif, Murmansk Oblast, Russian Federation) | struct image = | struct caption = | struct imagesize = | struct2 image = | struct2 caption = | struct2 imagesize= | SMILES = | Jmol = | category = | formula = {{chem2|Na(Sr,Ba)PO4}} | IMAsymbol = | molweight = | strunz = | dana = | system = | class = | symmetry = | unit cell = | color = Blue-green | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | toughness = | mohs = | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | Curie temp = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = | var1 = | var1text = | var2 = | var2text = | var3 = | var3text = | var4 = | var4text = | var5 = | var5text = | var6 = | var6text = }} '''Olgite''' is a rare blue-green colored phosphate mineral series that forms microscopic prismatic crystals that are trigonal in structure. Its chemical formula is {{chem2|Na(Sr,Ba)PO4}}.<ref>[http://www.mindat.org/min-2973.html Olgite on Mindat]</ref>
Olgite was discredited as a mineral name in 2008 by the International Mineralogical Association and is now the series name for bario-olgite and strontio-olgite (hypothetical mineral).<ref name=Webmin>[http://webmineral.com/data/Olgite.shtml Olgite on Webmin]</ref><ref>{{Cite web |title=Status of Olgite and Bario-olgite |url=http://pubsites.uws.edu.au/ima-cnmnc/minerals08-04.pdf |author=Ernst A. J. Burke}}</ref> The substance was named after Russian mineralogist Olga Anisimovne-Vorobiova (1902–1974).
==References== {{reflist}}
Category:Phosphate minerals Category:Trigonal minerals Category:Minerals in space group 164
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