Synthesis of calcium vanadate minerals and related compounds
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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.
Publication type | Report |
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Publication Subtype | USGS Numbered Series |
Title | Synthesis of calcium vanadate minerals and related compounds |
Series title | Trace Elements Investigations |
Series number | 616 |
DOI | 10.3133/tei616 |
Year Published | 1956 |
Language | English |
Publisher | U.S. Geological Survey |
Description | 27 p. |
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