نتایج جستجو برای: pegmatite

تعداد نتایج: 412  

Journal: :Journal of Materials Science and Chemical Engineering 2022

Formulation of traditional hard porcelain generally requires 50% kaolin, 25% silica and feldspar. Four porcelains formulation using the casting method, were prepared with different percentages kaolinitic clay, sand pegmatite referenced respectively NONG, SAB PEG. The physico-chemical, mechanical mineralogical characteristics evaluated on specimens formulated sintered at temperatures from 1200?C...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1950

Journal: :Applied Spectroscopy Reviews 2021

Mapping with laser-induced breakdown spectroscopy (LIBS) can offer more than just the spatial distribution of elements: rich spectral information also enables mineral recognition. In present study, statistical approaches were used for recognition spodumene from lithium pegmatite ores. A broad range (280–820 nm) multiple lines was first to establish methods based on vertex component analysis (VC...

Journal: :Japanese Magazine of Mineralogical and Petrological Sciences 2023

Monazite in a granite pegmatite from Yamanoo, Sakuragawa, Ibaraki Prefecture, Japan has been examined terms of U, Th, Pb, and rare earth element (REE) chemistry by electron microprobe analysis. This occurs as lenticular vein the Kabasan granitic body. Oscillatory sector zoning were observed back-scattered images. An averaged empirical formula was (Ce0.286Nd0.180Sm0.104La0.077Y0.069Pr0.041Gd0.06...

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