potassium feldspar


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potassium feldspar

n.
Any of several varieties of alkali feldspar, including sanidine, orthoclase, microcline, and adularia, that contain a high proportion of potassium relative to sodium. Also called K-feldspar, K-spar.
References in periodicals archive ?
and Colemanite Glaze Composition Recipe (%) C1 70 Saggar Ash [ILLUSTRATION OMITTED] 6 Sodium Feldspar 6 Potassium Feldspar 9 Ulexite 6 Quartz 3 Kaolin C2 75 Saggar Ash [ILLUSTRATION OMITTED] 5 Sodium Feldspar 5 Potassium Feldspar 7.
I-Minerals is developing the Bovill Kaolin deposit, a source of high purity potassium feldspar, quartz, kaolin and halloysite.
The topics include developing a new type of column magnetic separator, flotation mechanisms to separate potassium feldspar from quartz with an anion and cation mixed collector, the effect of bauxite moisture on high-pressure grinding roller crushing, preconcentration and separation capabilities of modified bentonite using dithizone for trace cobalt in water, synthetic silicone emulsion, and a sedimentation experiment on fine white slime water.
Especially noteworthy in thin section is the scarcity of potassium feldspar in any of the igneous clast types in this section.
Anhydrite, potassium feldspar and magnetite as alteration minerals.
Metallurgical bench testing to date has also revealed other potential economic targets, including cosmetic grade mica, silica chloride, aluminum chloride and rubidium enriched potassium feldspar.
Metallurgical bench testing to date has also revealed other potential economic targets include cosmetic grade mica, silica chloride, aluminum chloride and rubidium enriched potassium feldspar.
This met the requirements of the ceramics industry and extended the reserves of high potassium feldspar ore available to the Monticello facility.
The sample contains approximately equal proportions of broken and fractured quartz and potassium feldspar phenocrysts, and subordinate plagioclase crystals in a matrix of rounded, devitrified rhyolite fragments and crystal debris.
Initial work on the pegmatite by the OGS and The Open University of the United Kingdom consisted of two field seasons of study, 1648 electron microprobe analyses, 50 bulk chemical analyses, 21 analyses of potassium feldspar and X-ray diffraction work conducted upon 30 samples.

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