Aurorite

{{Short description|Mineral of manganese and silver}}

{{Infobox mineral

| name = Aurorite

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| image = Normal Aurorite in calcite with pyrolusite Hydrous silver calcium manganese oxide Aurora Mine, Hamilton, Treasure Hill District, Nevada 2354.jpg

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| caption = Aurorite crystals found in calcite

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| formula = (Mn{{sup|2+}},Ag,Ca)Mn{{sup|4+}}{{sub|3}}O{{sub|7}}·3H{{sub|2}}O

| IMAsymbol = Aro

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| color = Black, pale brown in transmitted light at the edges of very thin, platy grains

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| luster = Metallic

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| gravity = 3.81

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Aurorite is a dark-colored mineral with the chemical formula (Mn{{sup|2+}},Ag,Ca)Mn{{sup|4+}}{{sub|3}}O{{sub|7}}·3H{{sub|2}}O. It is named for its type locality, the North Aurora mine in White Pine County, Nevada.[https://mindat.org/min-428.html Aurorite] {{Webarchive|url=https://web.archive.org/web/20190406031819/https://www.mindat.org/min-428.html |date=2019-04-06 }} on mindat.org