Class : Sulfides and sulfosalts
    Subclass : Sulfosalts
    Crystal system : Orthorhombic
    Chemistry : (Pb,Tl)₂As₅S₉
    Rarity : Very rare

Hutchinsonite is a very rare mineral, present in hydrothermal veins and in hydrothermalized dolomites. It was named in honor of Arthur Hutchinson, Professor of Mineralogy at the University of Cambridge. Hutchinsonite rarely forms crystals, these are prismatic to acicular pseudo-orthorhombic, rarely reaching a centimeter, it also forms aggregates with a radiated texture, but most often occurs in foliated or fibrous masses with micaceous cleavage. The color is scarlet to cherry red, turning brown on large crystals.

Main photo : Hutchinsonite and orpiment from Quiruvilca Mine, La Libertad, Peru © Stephan Wolfsried

No twin known for this mineral species.

No fakes recorded for this mineral species.