omphacite
1.Three examples of identification of omphacite jade, jadeite albite jade and jadeite edenite jade are given.
2.HREM Study of The Deformed Microstructure of Omphacite in UHP Ky eclogite from Shima, Anhui Province
3.This apatite is an accessory mineral in the studied eclogite sample SQQ08 where it coexists with garnet, omphacite and rutile.
4.(3)to use the thermobarometer of Ravna and Terry (2004) for UHP kynaite eclogites with X_(Jd)<0.55 in omphacite.
5.(3) reaction rim or retrograde rim, e. g. , omphacite with diopside rim, diopside with amphibole rim, and ilmenite rim of rutile.
6.The results of investigation under microscope and analysis of EPMA indicate that the mineral consisting of Inky Black Jade is omphacite.
7.Clinopyroxene, labrador, omphacite, garnet and enstatite as the main minerals in ultramafic rock, eclogite and gabbro are selected as the samples to study the variations of resistivity of the mantle materials with pressures between 3GPa and 20GPa using a DAC device.
8.The experimental results show that the quantitative analysisof chemical composition by EDXRF combining the reflectance FTIR can determine jade with relativesimplicity and homogeneity in mineralogical composition effectively, On theory, according to the dataof EDXRF and the spectra of FTIR, the relations between EDXRF and FTIR in two series of jadeite-astridite-kosmochlor and jadeite-omphacitic jadeite-omphacite are discussed.
