Nadorite

nadorite

jamesonite

bindheimite

cerussite

Formula: PbSb3+O2Cl

Chloride, nadorite group, antimony-bearing mineral
Crystal System: Orthorhombic
Specific gravity: 7.02 measured, 7.06 calculated
Hardness: 3½ to 4
Streak: White, yellow to yellowish white
Colour: Brown, yellow to brownish yellow
Environments

Hydrothermal environments

Nadorite occurs as an alteration product of other antimony-bearing minerals in hydrothermal mineral deposits, associated with jamesonite, galena, sphalerite, bindheimite, senarmontite, valentinite, anglesite, cerussite, smithsonite and mimetite (HOM, Mindat).

Localities

At the type locality, the Nador n'Bails mine, Djebel Nador, Guelma District, Guelma Province, Algeria, nadorite is associated with smithsonite, bindheimite and anglesite (Mindat, Dana).

At the Bodannan mine, St Endellion, Cornwall, England, UK, nadorite occurs as an alteration of jamesonite (Dana).

Alteration

Nadorite commonly occurs as an alteration product of jamesonite (Webmin), and alters to cerussite and to bindheimite (Webmin, Dana, Mindat).

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