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Line 9: \| category = [[Sulfide mineral]], [[pyrite group]] \| formula = MnS<sub>2</sub> \| IMAsymbol = Hr<ref>{{Cite journal\|last=Warr\|first=L.N.\|date=2021\|title=IMA–CNMNC approved mineral symbols~~\|url=https://www.cambridge.org/core/journals/mineralogical-magazine/article/imacnmnc-approved-mineral-symbols/62311F45ED37831D78603C6E6B25EE0A~~\|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 = 119.07 g/mol \| strunz = 2.EB.05a \| dana = \| system = [[Cubic crystal system\|Cubic]] \| class = Diploidal (m{{overline\|3}}) <br/>[[H–M ~~Symbol~~symbol]]: (2/m {{overline\|3}}) \| symmetry = ''Pa''{{overline\|3}} \| unit cell = a = 6.107 Å; Z = 4 Line 57: It was discovered in [[Austro-Hungarian Monarchy]] in Kalinka (now [[Vígľašská Huta-Kalinka]] village) sulfur deposit near Detva in what is now [[Slovakia]] in 1846 and named after the Austrian geologists, [[Joseph Ritter von Hauer]] (1778–1863) and [[Franz Ritter von Hauer]] (1822–1899).<ref name=HBM/><ref name=Mindat/> It is found in Texas,~~USA~~ US; the Ural Mountains of Russia, and Sicily, Italy.<ref>{{Cite book \|last= \|first= \|title=Rocks and Minerals \|publisher=[[DK publishers]] \|year=2012 \|isbn=978-1-4093-8659-9 \|editor-last=Star \|editor-first=Fleur}}</ref> Under high pressure conditions (P>11 GPa), Hauerite undergoes a large collapse in unit cell volume (22 %) driven by a spin-state transition.<ref>[http://www.pnas.org/content/111/14/5106.abstract Kimber, S.A.J., et al., ''Giant pressure-induced volume collapse in the pyrite mineral MnS<sub>2</sub>,'' PNAS, April 8, 2014, vol. 111, no. 14, pp. ~~5106-5110~~5106–5110]</ref> ==References==