Formula: Pb2 (UO2)3 (AsO4)2 (OH)4 . 5H2O
Origin of name: For Baron F. von Hügel, Austrian-British theologian
Crystal system: Monoclinic
Crystal class: 2/m
Twinning:
Unit cell:
Colour: Brown to orange-yellow
Diaphaneity:
Luster: Greasy to adamantine
Habit: Crystals tabular, elongated and striated parallel to c axis
Hardness:
Specific gravity: ~ 5.1
Cleavage: 1; {100} good
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 |