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
Color
Red, pink, black
Crystal habit
Acicular – cccurs as needle-like crystals
Cleavage
{100} good
Fracture
Very brittle fracture producing small, conchoidal fragments
Mohs scale hardness
1.5–2
Luster
Sub-metallic
Streak
Red
Diaphaneity
Subtranslucent to opaque
Specific gravity
4.6
Optical properties
Biaxial (−)
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.
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.
Hutchinsonite is a sulfosalt mineral of thallium, arsenic and lead with formula (Tl,Pb)2As5S9. Hutchinsonite is a rare hydrothermal mineral. It was first...
heavy-metal-sulfide ores. Thallium is found in the minerals crookesite TlCu7Se4, hutchinsonite TlPbAs5S9, and lorándite TlAsS2. Thallium also occurs as a trace element...
(in which it was first discovered), lorandite, routhierite, bukovite, hutchinsonite and sabatierite. There are other minerals that contain small amounts...
mineral information and data". Mindat.org. Retrieved 2016-03-10. "Hutchinsonite: Hutchinsonite mineral information and data". Mindat.org. Retrieved 2016-03-10...
mineral information and data". Mindat.org. Retrieved 2016-03-10. "Hutchinsonite: Hutchinsonite mineral information and data". Mindat.org. Retrieved 2016-03-10...
mineral information and data". Mindat.org. Retrieved 2016-03-10. "Hutchinsonite: Hutchinsonite mineral information and data". Mindat.org. Retrieved 2016-03-10...
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