hutchinsonite

{{Infobox mineral | name = Hutchinsonite | category = Sulfosalt mineral | boxwidth = | boxbgcolor = | image = Hutchinsonite-169844.jpg | caption = Hutchinsonite, from Quiruvilca Mine, Santiago de Chuco Province, Peru. Size: 4.5×4.4×2.2 cm | formula = | IMAsymbol = Hut | molweight = | strunz = 2.HD.45 | system = Orthorhombic | class = Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) | symmetry = Pbca | color = Red, pink, black | habit = Acicular – cccurs as needle-like crystals | twinning = | cleavage = {100} good | fracture = Very brittle fracture producing small, conchoidal fragments | tenacity = | mohs = 1.5–2 | luster = Sub-metallic | refractive = nα = 3.078 nβ = 3.176 nγ = 3.188; 2V = 37° | opticalprop = Biaxial (−) | birefringence = δ = 0.110 | pleochroism = | streak = Red | gravity = 4.6 | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Subtranslucent to opaque | other = | references = }}

Hutchinsonite is a sulfosalt mineral of thallium, arsenic and lead with formula . Hutchinsonite is a rare hydrothermal mineral.