Formula: Pb2Zn2Fe5(AsO4)5O4
Origin of name: For Christopher James, mining engineer in Namibia
Crystal system: Triclinic
Crystal class: 1 or -1
Twinning:
Unit cell:
Colour: Reddish-brown
Diaphaneity:
Luster: Subadamantine
Habit: Crystals tabular, elongated along a-axis
Hardness: 3
Specific gravity: 5.10
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments:
| Back to Alphabetical list | Colour photos | Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |