$High-pressure single-crystal X-ray diffraction and infrared spectroscopic studies of the C2/m-P21/m phase transition in cummingtonite$

High-pressure single-crystal X-ray diffraction and infrared spectroscopic studies of the C2/m-P21/m phase transition in cummingtonite

The structural changes associated with the C2/m-P21/m phase transition in cummingtonite with (Fe+Mn)/(Fe+Mn+Mg)≈0.50 have been studied with single-crystal X-ray diffraction at various pressures up to 7.90 GPa and infrared spectroscopy up to 8.63 GPa. With increasing pressure, the crystal transforms...

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Veröffentlicht in:	The American mineralogist 1998-03, Vol.83 (3-4), p.288-299
Hauptverfasser:	Yang, Hexiong, Hazen, Robert M, Prewitt, Charles T, Finger, Larry W, Ren, Lu, Hemley, Russell J
Format:	Artikel
Sprache:	eng
Schlagworte:	amphibole group chain silicates clinoamphibole crystal structure Crystallography Crystals cummingtonite high pressure infrared spectra Infrared spectroscopy Mineralogy P-T conditions phase equilibria pressure Scientific imaging silicates spectra X-ray diffraction X-ray diffraction data X-rays
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