Nadorite

Nadorite is a mineral with the chemical formula PbSb[O2|Cl].

In the orthorhombic crystal system, Nadorite is brown, brownish-yellow or yellow in colour, with a white or yellowish-white streak.

With a Mohs hardness of 3½ to 4, it has one perfect cleavage.

Nadorite is named after Djebel Nador in Algeria, where it was first identified in 1870. Djebel Nador and Djebel Debbar (both in the Constantine Province of Algeria) are its co-type localities.