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Synthesis of calcium vanadate minerals and related compounds

Trace Elements Investigations 616

This report concerns work done on behalf of the Division of Research of the U.S. Atomic Energy Commission
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Abstract

Synthesis of natural vanadates shows that most of them are stable in an acid environment. Phase studies of a portion of the system CaO-V2O5-H2O indicate that calcium vanadates are an indicator of environmental pH conditions. Some minerals, such as pascoute, indicate rapid evaporation of vanadite solutions; other minerals, such as hewettite, show that slow evaporation took place. Cursory examination of systems K2O-UO2-(NO3)2-V2O5 and CaO-UO2(NO3)2-V2O5, both in aqueous solution, has yielded information on the relationships among carnotite, tyuyamunite, and rauvite.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Synthesis of calcium vanadate minerals and related compounds
Series title:
Trace Elements Investigations
Series number:
616
Year Published:
1956
Language:
English
Publisher:
U.S. Geological Survey
Description:
27 p.