High-pressure transformations in CaSiO3
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Eric Essene
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Article
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1974
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Springer
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English
β 253 KB
Wollastonite transforms to a triclinic high-pressure polymorph, wollastonite II, at pressures >25kb. The equilibrium boundary [P(bars)=--4.7 β’ T~ has a rather flat negative P--T slope. The rapid reactivity of the transition over at least a 1000 ~ C range, its insensitivity to T and its location arou