Vaesite

{{infobox mineral

| name = Vaesite

| category = Sulfide minerals

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| image = Vaesite-626130.jpg

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| caption = Vaesite on a matrix

| formula = NiS₂

| IMAsymbol = Va{{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}}

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| system = Isometric

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| color = Black, silver-gray

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| cleavage = Distinct/good {001}

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| mohs = 4.5–5.5

| luster = Metallic

| streak = Black

| diaphaneity = Opaque

| gravity = 4.45

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| references = {{cite web|url= http://www.mindat.org/min-4133.html|work=mindat.org|title= Vaesite|accessdate=2021-12-17}}

}}

Vaesite (NiS₂) is a mineral found together with cattierite in the Democratic Republic of Congo. It is named after Johannes F. Vaes, a Belgian mineralogist.{{cite journal | title = Cattierite and Vaesite: New Co-Ni Minerals from the Belgian Kongo | first = Paul F. | last = Kerr| year = 1945|journal=American Mineralogist | volume = 30|issue=7–8| pages = 483–492| url = http://www.minsocam.org/ammin/AM30/AM30_483.pdf|s2cid=51786115|issn=1945-3027}} It is part of the pyrite group.