Moctezumite Locality: Moctezuma Mine (Bambolla Mine), Moctezuma , Municipio de Moctezuma , Sonora , Mexico ( Locality at mindat.org ) Picture width 4 mm. Collection and photograph Christian Rewitzer — Photo: Christian Rewitzer · CC BY-SA 3.0
Moctezumite
A lead-uranyl tellurite described in 1965 from Moctezuma, Sonora, Mexico.
Intro adapted from Wikipedia (CC BY-SA).
Moctezumite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Pb(UO₂)(Te⁴⁺O₃)₂.
It crystallizes in the monoclinic crystal system (space group P2_1/c).
Key properties: Mohs hardness 3; specific gravity 5.73; Dull luster; optically biaxial.
IMA symbol Moc, IMA status: approved, named in 1965.
A rare secondary mineral found in the oxidized zone of a hydrothermal Au–Te deposit.
It is found associated with Schmitterite, burckhardtite, zemannite, emmonsite, pyrite, barite, “limonite”.
The name refers to its occurrence in the Moctezuma mine, Mexico.