Thermal differential diagnosis of mica mineral group
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The following criteria can be used for differential diagnosis of mica mineral group: weight loss < 350°C; weight loss during dehydroxylation (500–1000°C); peak temperature of structural decomposition and formation of high temperature phases; course of dilatometric curves during dehydroxylation and structural decomposition interval (Fig. 1).
Using the single criteria by stepwise comparing a complete thermal differentiation is possible between the members of mica mineral group.
Keywordsdilatometry DTA mica TG thermal transformation
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