Hutchinsonite

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Hutchinsonite
Hutchinsonite-169844.jpg
Hutchinsonite, from Quiruvilca Mine, Santiago de Chuco Province, Peru. Size: 4.5×4.4×2.2 cm
General
Category Sulfosalt mineral
Formula
(repeating unit)
(Tl,Pb)2As5S9
IMA symbol Hut [1]
Strunz classification 2.HD.45
Crystal system Orthorhombic
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space group Pbca
Identification
ColorRed, pink, black
Crystal habit Acicular – cccurs as needle-like crystals
Cleavage {100} good
Fracture Very brittle fracture producing small, conchoidal fragments
Mohs scale hardness1.5–2
Luster Sub-metallic
Streak Red
Diaphaneity Subtranslucent to opaque
Specific gravity 4.6
Optical propertiesBiaxial (−)
Refractive index nα = 3.078
nβ = 3.176
nγ = 3.188; 2V = 37°
Birefringence δ = 0.110
References [2] [3] [4]

Hutchinsonite is a sulfosalt mineral of thallium, arsenic and lead with formula (Tl,Pb)2As5S9. Hutchinsonite is a rare hydrothermal mineral.

Contents

It was first discovered in a sample from Binnental, Switzerland in 1903 and named after Cambridge mineralogist Arthur Hutchinson, F.R.S. (1866–1937) in 1904.

See also

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<span class="mw-page-title-main">Aktashite</span>

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<span class="mw-page-title-main">Galkhaite</span>

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<span class="mw-page-title-main">Aleksite</span>


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<span class="mw-page-title-main">Andorite</span>

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<span class="mw-page-title-main">Marrite</span>

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<span class="mw-page-title-main">Enneasartorite</span>

Enneasartorite is a very rare mineral with formula Tl6Pb32As70S140. It belongs to sartorite homologous series. It is related to other recently approved minerals of the sartorite series: hendekasartorite and heptasartorite. All come from Lengenbach quarry in Switzerland, which is famous for thallium sulfosalts. Enneasartorite is chemically similar to edenharterite and hutchinsonite.

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<span class="mw-page-title-main">Sartorite</span> Lead arsenic sulfide

Sartorite is a lead arsenic sulfide with the chemical formula PbAs2S4 and as type locality the Lengenbach Quarry in Legenbach, Binnental, Valais, Switzerland. Historically, sartorite has been thought isomorphic to chalcostibite, emplectite, and zinckenite, but was definitively distinguished from the others in 1939.

References

  1. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi: 10.1180/mgm.2021.43 . S2CID   235729616.
  2. Handbook of Mineralogy
  3. Hutchinsonite at Mindat.org
  4. Hutchinsonite at Webmineral

Further reading