Impurity Content Characterization of Brazilian Quartz Lascas
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概要
- 論文の詳細を見る
Lattice impurities (Al, Li, Fe) free from the influence of cations in inclusion liquid were evaluated by atomic absorption spectrophotometry (AAS) in quartz lascas taken from 10 deposits with known localities in three states, Minas Gerais, Tocantins and Bahia. Levels of Al content and associated Li content depend on the localities of deposits. Quartz deposit regions with high Al content are composed of granite, gneiss, and pegmatite as surrounding rocks. It was concluded that the charge compensation for Al-Si substitution in quartz lascas was realized substantially by the formation of Al-Li and Al-OH centers which were confirmed from the linear relation of Al-Li plots by AAS data and IR spectra due to Al-OH center. The variety in Al-Li and AN-OH correlations was attributed to the fluctuation of growing conditions of quartz in nature.
- 社団法人応用物理学会の論文
- 1991-07-15
著者
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SUZUKI Carlos
JAERI-RIKEN SPring-8 Project Team
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Suzuki Carlos
Laboratorio De Quartzo Departamento De Materiais Faculdade De Engenharia Mecanica Unicamp
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Hummel Daniele
Laboratorio De Quartzo Departamento De Materiais Faculdade De Engenharia Mecanica Unicamp
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IWASAKI Hideo
Laboratorio de Quartzo, Departamento de Materiais, Faculdade de Engenharia Mecanica, UNICAMP
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IWASAKI Fumiko
Laboratorio de Quartzo, Departamento de Materiais, Faculdade de Engenharia Mecanica, UNICAMP
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OLIVEIRA Virginia
Laboratorio de Quartzo, Departamento de Materiais, Faculdade de Engenharia Mecanica, UNICAMP
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PASQUALI Maria
Laboratorio de Quartzo, Departamento de Materiais, Faculdade de Engenharia Mecanica, UNICAMP
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GUZZO Pedro
Laboratorio de Quartzo, Departamento de Materiais, Faculdade de Engenharia Mecanica, UNICAMP
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WATANABE Noemia
Laboratorio de Quartzo, Departamento de Materiais, Faculdade de Engenharia Mecanica, UNICAMP
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Guzzo Pedro
Laboratorio De Quartzo Departamento De Materiais Faculdade De Engenharia Mecanica Unicamp
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Pasquali Maria
Laboratorio De Quartzo Departamento De Materiais Faculdade De Engenharia Mecanica Unicamp
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Watanabe Noemia
Laboratorio De Quartzo Departamento De Materiais Faculdade De Engenharia Mecanica Unicamp
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Oliveira Virginia
Laboratorio De Quartzo Departamento De Materiais Faculdade De Engenharia Mecanica Unicamp
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Iwasaki Fumiko
Laboratório de Quartzo, Departamento de Materlais, Faculdade de Engenharia de Campinas, UNICAMP, 13100 Campinas, Sāo Paulo, Brasil
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Suzuki Carlos
Laboratório de Quartzo, Departamento de Materlais, Faculdade de Engenharia de Campinas, UNICAMP, 13100 Campinas, Sāo Paulo, Brasil
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