albite


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Related to albite: microcline, augite

albite

(ăl`bīt): see feldsparfeldspar
or felspar
, an abundant group of rock-forming minerals which constitute 60% of the earth's crust. Chemically the feldspars are silicates of aluminum, containing sodium, potassium, iron, calcium, or barium or combinations of these elements.
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albite

[′al‚bīt]
(mineralogy)
NaAlSi3O8 A colorless or milky-white variety of plagioclase of the feldspar group found in granite and various igneous and metamorphic rocks. Also known as sodaclase; sodium feldspar; white feldspar; white schorl.
References in periodicals archive ?
Perthite, albite, quartz, and sparse microcline are accompanied by small quantities of opaque oxide, with or without biotite, titanite and secondary minerals (Fig.
When correlating the three municipalities with minerals with higher percentages, a high negative correlation in the municipalities of Camargo and Jimenez was detected for calcite, but high positive relationship in these two municipalities with albite and sanidine was found (Table 2).
99 Table 4 Representative analyses of white mica and illite from topaz- albite granite and argillized granite of the Hub stock.
Like the schists, the gneisses are characterised by the abundance of syn-S2 albite and garnet (Grt2) porphyroblasts.
The molecular zirconium or substitute with Ti+4 and accompany it into proportion of Na2O corresponding to albite content is in Fe+4 sites (Taylor, 1965).
The new Albite series of LED home lamps is different from older LED products.
XRD analysis revealed formation of new mineral phases like nepheline and albite after exposing geopolymer specimen to 900[degrees]C, as a result of chemical changes occurred due to viscous sintering.
Samples of quartz, microcline, and albite in five silt-size ranges were annealed at 250[degrees]C and then dosed with 2, 4, 8, 16, and 32 mrads of radiation from a Cobalt-60 source (total samples).
Calcite commonly encrusts various minerals, including emerald, pyrite, quartz, albite, apatite, and fluorite.
As to the rarity of sodium in meteorites, they do contain traces of albite, a feldspar which contains sodium.
The rhyolite sheets are banded, sparsely porphyritic, and composed of perthite, quartz, albite, sodic amphibole, aegirine-augite, opaque oxide and titanite.