Formula: PbZn(VO4)(OH)
Origin of name: For A. Des Cloizeaux, French mineralogist
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell: a = 7.602 Å, b = 9.460 Å, c = 6.060 Å
Colour: Orange-red to dark reddish brown to dark blackish brown
Diaphaneity:
Luster: Vitreous to greasy
Habit: Crystals pyramidal, prismatic, short prismatic or tabular; drusy or plumose crusts, botryoidal, stalactitic, granular
Hardness: 3 to 3.5
Specific gravity: 6.24 to 6.26
Cleavage: None
Tenacity: Conchoidal to uneven; brittle
Streak:
Synonyms/varieties:
Comments: Series with mottramite
| Back to Alphabetical list | Colour photos | Optical properties/Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |