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Phengite Wikipedia

Phengite is a series name for dioctahedral micas of composition K AlMg 2 OH 2 SiAl 4O10 similar to muscovite but with addition of magnesium It is a non IMA

Phengite Mineral information data and localities Mindat

Phengite is an aluminous true mica which contains a relatively high amount of tetrahedrally co ordinated Si gt 3 1 apfu As the Si amount increases

phengite 3t in high pressure metamorphosed granitic RRuff

The mineral paragenesis of ltre blueschist facies in granitic orthogneiss is quartz albite microcline phengite biotite almandine rich garnet occurs in tona

Application of Phengite Barometry to Examine Pressure SURFACE

Results of the phengite geobarometers show that peak pressures were in the In contrast Si in phengite barometry of the felsic gneiss yielded estimated

Compositional and structural relationships between phengites and

Jan 12 1970 INTRODUCTION THE NATURE of illite as a monomineral phase has been recently discussed by Gaudette Eades and Grim 1966