Itelmenite

{{short description|Rare sulfate mineral}} {{Infobox mineral | name = Itelmenite | boxwidth = | boxbgcolor = | image = | imagesize = | alt = | caption = | category = Sulfate | formula = Na₄Mg₃Cu₃(SO₄)₈ | IMAsymbol = Itm<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}</ref> | molweight = | strunz = | system = Orthorhombic | class = Dipyramidal (mmm) <br/>H-M symbol: (2/m 2/m 2/m) | symmetry = ''Pbca'' | unit cell = a = 9.57, b = 8.79 <br/>c = 28.72&nbsp;[Å] (approximated) | color = | colour = | habit = | twinning = | cleavage = | fracture = | tenacity = | mohs = | luster = | streak = | diaphaneity = | gravity = | density = | polish = | opticalprop = | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence = | absorption = | melt = | fusibility = | diagnostic = | solubility = | impurities = | alteration = | other = | prop1 = | prop1text = | references = <ref name=N/> }} '''Itelmenite''' is a rare sulfate mineral with the formula Na₄Mg₃Cu₃(SO₄)₈. It is one of many fumarolic minerals discovered on the Tolbachik volcano.<ref name=N>Nazarchuk, E.V., Siidra, O.I., Agakhanov, A.A., Lukina, E.A., Avdontseva, E.Y., Vergasova, L.P., Filatov, S.K., and Karpov, G.A., 2015. Itelmenite, IMA 2015-047. CNMNC Newsletter No. 27, October 2015, 1225; Mineralogical Magazine 79, 1229–1236</ref><ref>{{cite web|url=http://www.mindat.org/loc-5602.html |title=Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia - Mindat.org |website=Mindat.org |accessdate=2016-03-13}}</ref>

==Relation to other minerals== Saranchinaite and dravertite are examples of other anhydrous complex copper-bearing sulfates, also coming from the Tolbachik volcano.<ref>{{cite web|url=http://www.mindat.org/min-46677.html |title=Saranchinaite: Saranchinaite mineral information and data |website=Mindat.org |accessdate=2016-03-13}}</ref><ref>{{cite web|url=http://www.mindat.org/min-46608.html |title=Dravertite: Dravertite mineral information and data |website=Mindat.org |accessdate=2016-03-13}}</ref>

==External links== * Itelmenite on Mindat: {{cite web|url=http://www.mindat.org/min-46802.html |title=Itelmenite: Itelmenite mineral information and data |website=Mindat.org |accessdate=2016-03-13}}

==References== {{reflist}}

Category:Sulfate minerals Category:Copper(II) minerals Category:Sodium minerals Category:Magnesium minerals Category:Orthorhombic minerals Category:Minerals in space group 61

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