Formula: AgTlPbAs2S5
Sulphosalt, arsenic-, silver- and
thallium- bearing mineral, forms a series with
wallisite
Crystal System: Triclinic
Specific gravity: 5.81 calculated
Streak: Chocolate-brown
Colour: Lead-grey
Common impurities: Cu,Sb
Environments
Although hatchite was 'Grandfathered', having first been described prior to 1959, to date (May 2023) it has been
listed on Mindat only as occurring at the type locality.
Localities
At the type locality, the Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland, hatchite is of hydrothermal
origin, found in crystalline dolostone. Associated minerals include
wallisite, hutchinsonite,
jentschite, sicherite,
edenharterite, bernardite,
stalderite, lorándite,
realgar and orpiment
(HOM).
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