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Related to felspar: mica


Variant of feldspar.


(Minerals) a variant (esp Brit) of feldspar
felspathic, ˈfelspathˌose adj


(ˈfɛldˌspɑr, ˈfɛl-)

also felspar

any of a group of crystalline minerals, principally aluminosilicates of potassium, sodium, and calcium, characterized by two cleavages at nearly right angles: one of the most important constituents of igneous rocks.
[1765–75; alter. of feldspath < German (Feld field + Spat(h) spar)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.felspar - any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
atomic number 14, Si, silicon - a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
orthoclase - a white or colored monoclinic feldspar
oligoclase, plagioclase - any of a series of triclinic feldspars that form rocks
moonstone - a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar
spar - any of various nonmetallic minerals (calcite or feldspar) that are light in color and transparent or translucent and cleavable


[ˈfelspɑːʳ] Nfeldespato m


nFeldspat m
References in classic literature ?
It was composed of black and vitreous lava, mixed with fragments of felspar. And lastly, on the 10th of March, a smaller island, called Reka, showed itself near Nea Kamenni, and since then these three have joined together, forming but one and the same island."
Beudant [11] succeeded in making tubes, in most respects similar to these fulgurites, by passing very strong shocks of galvanism through finely-powdered glass: when salt was added, so as to increase its fusibility, the tubes were larger in every dimension, They failed both with powdered felspar and quartz.
Thus she contrives to intenerate the granite and felspar, takes the boar out and puts the lamb in and keeps her balance true.
It could be considered that the entire roof of the working face was dominated by relatively intact sandstone, while the main roof was felspar sandstone stratum of 19.79 m (ultra-thick sandstone of nearly 20 m).
(6) There are several technical reasons for this, but primarily, extreme seasonal humidity fluctuations leads to the decay of quartz and felspar inclusion in ceramic material, leading to anomalous radon loss.
<BJewel fabric, PS52.50 per metre (Moonstone, Lapis, Starlite, Rhodolite, Felspar, Jade, Ruby and Amethyst), width 140cms, Extex.
They include four from Merseyside - Steven Kehoe, 29, of Felspar Road, Liverpool; Thomas Kehoe, 26, of Liverpool; Daniel O'Flahertty, 22, of Grove Road in Wallasey and John Hunt, 50, of Prescot Road, Old Swan, Liverpool.
Exports of Felspar, Nepheline, Nepheline Syenite, Leucite and Fluorspar has grew month on month basis by 348.35%.
FELDSPAR CONTENT: % of felspar from <5% - >75% (white grains of detrital plagioclase or ortlioclase)
The materials of shadowy celadon in the Song Dynasty were different from those of common ceramics made from quartz, felspar and kaolinite.
Porcelain, in a thin filigree of precious translucent clay body composed of valuable kaolin, quartz and felspar, when hit with light not only emits the sensation of reverberation and luminosity but also of vibration and elusive shadows.