Rotating garnets
نویسندگان
چکیده
منابع مشابه
Magnetic Properties of Y3−2xCa2xFe5−xVxO12 Garnets
A comprehensive study of the magnetic properties of Y3−2xCa2xFe5−xVxO12 (0 ≤ x ≤ 1) has been performed. The garnet ferrites samples were prepared by the ceramic technique, and X-ray diffraction analysis indicates the formation of single cubic phase. Vibrating sample magnetometry (VSM) and a superconducting quantum-interference device (SQUID) were used to measure the magnetic properties, especia...
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Relative compressibilities of five silicate garnets were determined by single-crystal x-ray diffraction on crystals grouped in the same high-pressure mount. The specimens include a natural pyrope [(Mgz.84Feo.IOCao,o6) AI2Si30d, and four synthetic specimens with octahedrally-coordinated silicon: majorite [Mg3(MgSi)Si30 d, calcium-bearing majorite [(Cao.49Mg2.sl)(MgSi)Si30d, sodium majorite [(NaI...
متن کاملGarnets from the Camafuca-Camazambo kimberlite (Angola).
This work presents a geochemical study of a set of garnets, selected by their colors, from the Camafuca-Camazambo kimberlite, located on northeast Angola. Mantle-derived garnets were classified according to the scheme proposed by Grütter et al. (2004) and belong to the G1, G4, G9 and G10 groups. Both sub-calcic (G10) and Ca-saturated (G9) garnets, typical, respectively, of harzburgites and lher...
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A garnetite that occurs locally in phyllitic schists exposed by the Santorini caldera consists mainly of euhedral garnet crystals showing alternating isotropic and birefringent lamellae. X-ray diffraction revealed two garnets with unit cell dimensions a of I2.o52:ko-oo2 and I~'984-ko-oo5 A, corresponding respectively to almost pure andradite and a granditic phase. Mean compositions determined b...
متن کاملPressure-induced nano-crystallization of silicate garnets from glass
Transparent ceramics are important for scientific and industrial applications because of the superior optical and mechanical properties. It has been suggested that optical transparency and mechanical strength are substantially enhanced if transparent ceramics with nano-crystals are available. However, synthesis of the highly transparent nano-crystalline ceramics has been difficult using convent...
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ژورنال
عنوان ژورنال: Journal of Metamorphic Geology
سال: 1999
ISSN: 0263-4929,1525-1314
DOI: 10.1046/j.1525-1314.1999.00203.x