Thunderbayite

thunderbayite

aurostibite

stibarsen

biagioniite

Images

Formula: TlAg3Au3Sb7S6
Sulphosalt of thallium, silver, gold and antimony
Specific gravity: 5.693 calculated
Hardness: 3
Streak: Black
Colour: Black
Environments

Hydrothermal environments

Thunderbayite is a new mineral, approved in 2020 and to date (April 2022) reported only from the type locality.

Localities

At the type locality, the Hemlo gold deposit, Bomby Township, Thunder Bay District, Ontario, Canada, thunderbayite occurs as very rare anhedral rims up to 70 μm across in contact with aurostibite and associated spatially with stibarsen, biagioniite and native gold in a calcite matrix (MM 84.6.805-812).

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