Sulphosalt, forms a series with geocronite
Specific gravity: 6.4
Common impurities: Tl
Jordanite occurs in metamorphosed lead-arsenic occurrences in dolostone (Webmin),
associated with tennantite, seligmannite,
enargite, sphalerite and
galena. It also occurs in “black smoker” undersea chimneys
At the Yunosawa and Okkope mines, Aomori Prefecture, Japan, jordanite occurs in epithermal (low-temperature) veins (HOM).
At Sacaramb, Romania, jordanite occurs in epithermal gold - quartz veins (HOM).
At the type locality, the Lengenbach quarry, Fäld, Binn, Goms, Valais, Switzerland, jordanite occurs in metamorphosed lead-arsenic occurrences in dolostone (HOM).
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