# Aerugite

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> Markdown URL: https://mediated.wiki/source/Aerugite.md
> Source: https://en.wikipedia.org/wiki/Aerugite
> Source revision: 1294285710
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{{Short description|Nickel arsenate mineral}}
{{Infobox mineral
| name        = Aerugite
| category    = [Arsenate minerals](/source/Arsenate_minerals)
| image       = File:Aerugite-154934.jpg
| formula     = Ni<sub>9</sub>(AsO<sub>4</sub>)<sub>2</sub>AsO<sub>6</sub>
|IMAsymbol=Aru<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      = 8.BC.15
| color       = Grass green, blue-green
| habit       = Massive to crystalline crusts
| system      = Trigonal
| class       = Hexagonal scalenohedral ({{overline|3}}m) <br/>[H-M symbol](/source/H-M_symbol): ({{overline|3}} 2/m)
| symmetry    = ''R''{{overline|3}}m
| twinning    = 
| cleavage    = 
| fracture    = 
| tenacity    = 
| mohs        = 4
| luster      = Adamantine
| streak      = light green, greenish white
| diaphaneity = Opaque to semitransparent
| gravity     = 5.85–5.95
| density     = 
| polish      = 
| opticalprop = 
| refractive  = 
| birefringence = 
| pleochroism = 
| 2V          = 
| dispersion  = 
| extinction  = 
| length fast/slow =
| fluorescence= 
| absorption  =
| melt        = 
| fusibility  = 
| diagnostic  = 
| solubility  = 
| other       = 
| alteration  = 
| references  = <ref name="Mindat">[http://www.mindat.org/min-36.html Mindat.org Aerugite page]</ref><ref name="Webmineral">[https://www.webmineral.com/data/Aerugite.shtml Webmineral Aerugite page]</ref><ref>https://rruff.geo.arizona.edu/doclib/hom/aerugite.pdf Handbook of Mineralogy</ref>
}}

'''Aerugite''' is a rare complex [nickel](/source/nickel) [arsenate](/source/arsenate) mineral with a variably reported formula: Ni<sub>9</sub>(AsO<sub>4</sub>)<sub>2</sub>AsO<sub>6</sub>. It forms green to deep blue-green [trigonal](/source/trigonal) crystals. It has a [Mohs hardness](/source/Mohs_hardness) of 4 and a [specific gravity](/source/specific_gravity) of 5.85 to 5.95. 

It was first described in 1858 in either the [South Terres](/source/South_Terres) mine of [Cornwall](/source/Cornwall), England or in the [Ore Mountains](/source/Ore_Mountains), [Saxony](/source/Saxony), Germany. The origin is disputed. The most common occurrence is as an incrustation on furnace walls in which [ore](/source/ore)s are ''roasted''. Its name comes from the [Latin](/source/Latin) word ''aerugo'' for ''copper rust''.

==See also==
* [List of minerals](/source/List_of_minerals)

==References==
{{reflist}}

Category:Nickel minerals
Category:Arsenate minerals
Category:Trigonal minerals
Category:Minerals in space group 166

{{mineral-stub}}

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Adapted from the Wikipedia article [Aerugite](https://en.wikipedia.org/wiki/Aerugite) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Aerugite?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.