algodonite

{{Infobox mineral

| name = Algodonite

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| image = Algodonit - Houghton County, Michigan, USA.jpg

| imagesize = 260

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| caption = Algodonite – Houghton County, Michigan, US

| category = Sulfide mineral

| formula = Cu₆As

|IMAsymbol=Ago{{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}}

| molweight = 456.2 g/mol

| strunz = 2.AA.10a

| dana =

| system = Hexagonal

| class = Dihexagonal dipyramidal (6/mmm)
H-M symbol: (6/m 2/m 2/m)

| symmetry = P6₃/mmc

| unit cell = a = 2.6, c = 4.228 [Å]; Z = 2

| color = Gray, silver white, steel gray, tarnishes dull bronze

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| habit = Massive, granular. Common texture observed in granite and other igneous rock

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| fracture = Sub-conchoidal

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| mohs = 4

| luster = Metallic

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| diaphaneity = Opaque

| gravity = 8.38 (measured), 8.72 (calculated)

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| other = Non-magnetic, non-fluorescent

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| references = [http://webmineral.com/data/Algodonite.shtml Algodonite]. Webmineral[http://www.mindat.org/min-114.html Algodonite]. Mindat.org{{cite journal|url=http://www.minsocam.org/MSA/collectors_corner/arc/rammelsbergite.htm |author=Williams, Sidney A. |year=1963|title=Crystals of rammelsbergite and algodonite|journal= American Mineralogist|volume =48|pages=421–422}}

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Algodonite is a copper arsenide mineral with formula: Cu₆As. It is a gray white metallic mineral crystallizing in the hexagonal system. It has a Mohs hardness of 4 and a specific gravity of 8.38 – 8.72.

It was first described in 1857 from the Algodones silver mine, Coquimbo, Chile.