Dadsonite

dadsonite

jamesonite

robinsonite

zinkenite

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Formula: Pb₂₃Sb₂₅S₆₀Cl
Sulphosalt, antimony-bearing mineral
Crystal System: Triclinic
Specific gravity: 5.68 measured, 5.51 calculated
Hardness: 2½
Streak: Black
Colour: Lead-grey
Common impurities: As,(Fe)
Environments

Hydrothermal environments

Dadsonite occurs in hydrothermal veins with other sulphides and lead sulphosalt minerals (Webmin).

Localities

There are four co-type localities:
Giant Yellowknife mine, Yellowknife, North Slave Region, Northwest Territories, Canada.
Taylor Pit, Huntingdon Township, Madoc area, Hastings County, Ontario, Canada.
Graf Jost-Christian mine, Wolfsberg, Stolberg, Südharz, Mansfeld-Südharz, Saxony-Anhalt, Germany.
Red Bird Mine, Antelope Springs Mining District, Pershing county, Nevada, USA.

In the Northwest Territories and Ontario, Canada, dadsonite is associated with jamesonite (HOM).

At Saint-Pons, Barcelonnette, Alpes-de-Haute-Provence, Provence-Alpes-Côte d'Azur, France, dadsonite is associated with bournonite, boulangerite, zinkenite and chalcostibite (HOM).

At the Red Bird Mine, Antelope Springs Mining District, Pershing county, Nevada, USA, dadsonite is associated with robinsonite (HOM).

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