Hallimondite, a new uranium mineral from the Michael Mine near Reichenbach (Black Forest, Germany)

The hallimondite occurs as small tabular crystals with triclinic symmetry and as fine-grained coatings in cavities and fissures in quartz, in association with hügelite and mimetite. Data on mode of occurrence, crystallography, and physical, optical, chemical, and x-ray properties are reported. The f...

Full description

Saved in:
Bibliographic Details
Published in:The American mineralogist 1965, Vol.50 (9), p.1143-1157
Main Author: Walenta, Kurt
Format: Article
Language:English
Subjects:
Black Forest
Central Europe
crystal structure
crystal systems
Europe
Germany
hallimondite
mineral data
mineralogy
new mineral
Pb2(UO2)(AsO4)2
properties
triclinic system
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The hallimondite occurs as small tabular crystals with triclinic symmetry and as fine-grained coatings in cavities and fissures in quartz, in association with hügelite and mimetite. Data on mode of occurrence, crystallography, and physical, optical, chemical, and x-ray properties are reported. The formula Pb2(UO2)(AsO4)2 was derived from synthetic material. Comparison with the lead uranyl phosphate mineral parsonsite shows hallimondite to be the arsenate analogue of parsonsite.
ISSN:0003-004X
1945-3027