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Formula: Pb(AsO3OH)
Anhydrous acid arsenate
Crystal System: Monoclinic
Specific gravity: 5.943 to 6.08 measured, 6.041 calculated
Hardness: 2½
Streak: White
Colour: Colourless; colourless in transmitted light
Luminescence: Fluoresces dull yellow in long wave UV
Environments:
Schultenite is a rare secondary mineral in the oxidised
zone of lead-arsenic hydrothermal
deposits (HOM).
Associated minerals include anglesite,
bayldonite,
cuprian adamite, keyite,
olivenite, duftite,
carminite, beudantite,
scorodite, stranskiite,
pharmacosiderite, mimetite,
cerussite, tennantite,
galena, quartz and
arsenopyrite
(HOM, Mindat).
Schultenite alters to anglesite
(Dana).
Localities
At North Bend, King county, Western Australia, schultenite has been found in vugs in a
quartz-arsenopyrite vein with
galena and
mimetite, and associated with
copper-bearing
adamite,
keyite and tennantite
(Dana).
At the type locality, the Tsumeb Mine, Oshikoto Region, Namibia, schultenite has been found in the oxidised zones
of lead deposits, on
a matrix of bayldonite
pseudomorphs
after
anglesite, azurite and
mimetite
(AM 12.296).
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