Argutite

{{Infobox mineral

| name = Argutite

| category = Oxide mineral

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| formula = GeO₂

|IMAsymbol=Agt{{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}}

| molweight = 104.61

| strunz = 4.DB.05

| dana = 04.04.01.07

| system = Tetragonal
Ditetragonal dipyramidal class

| symmetry = Tetragonal
H–M Symbol: (4/m 2/m 2/m)
Space group: P4₂/mnm

| unit cell = a = 4.3975, c = 2.8625 [Å]; Z = 2

| color = Grayish black, light gray in reflected light

| habit = Subhedral crystals, as inclusions in sphalerite

| twinning = Occasionally twinned on {101}

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| mohs = 6-7

| luster = Vitreous - adamantine

| refractive = 2.01

| opticalprop = Uniaxial (+)

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| gravity = 6.28 calculated

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| diaphaneity = Transparent to opaque

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| references = [http://webmineral.com/data/Argutite.shtml Webmineral][http://www.mindat.org/min-330.html Mindat.org][http://rruff.geo.arizona.edu/doclib/hom/argutite.pdf Handbook of Mineralogy]

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Argutite (GeO₂) is a rare germanium oxide mineral. It is a member of the rutile group.

It was first described for an occurrence in the Argut deposit, central Pyrenees, Haute-Garonne, France in 1983. The type locality is within a zinc ore deposit within lower Paleozoic sedimentary rocks that have undergone metamorphism. Associated minerals include sphalerite, cassiterite, siderite and briartite.