Images
Formula: TlSb5S8
Sulphosalt, sartorite group, monoclinic
paramorph of
orthorhombic pierrotite,
thallium- and antimony- bearing mineral
Crystal System: Monoclinic
Specific gravity: 5.07 measured, 5.04 calulated
Hardness: 2½ to 3
Streak: Grey
Colour: Black
Environments
Localities
At the Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy, parapierrotite was
identified in two different samples, as striated prismatic crystals, black in colour, ranging from 0.05 to 0.5 mm in
length. In the studied specimens, parapierrotite is associated with
sphalerite, zinkenite,
tetrahedrite and routhierite,
or with stibnite,
protochabournéite and
routhierite
(EJM 31.5-6).1055–1065).
At the type locality, Allchar, Rožden, Kavadarci Municipality, North Macedonia, parapierrotite is of hydrothermal
origin,
in cavities in realgar
(AM 61.504, Webmin, HOM).
At the Lookout Pass Thallium prospect, Little Valley, Sheeprock Mountains, Tooele county, Utah, USA, parapierrotite
is
associated with avicennite
(HOM).
Back to Minerals