|
|
Definition of Oligoclase
1. Noun. Any of a series of triclinic feldspars that form rocks.
Substance meronyms: Dacite, Basalt
Generic synonyms: Feldspar, Felspar
Specialized synonyms: Albite, White Feldspar, Anorthite
Derivative terms: Plagioclastic
Definition of Oligoclase
1. n. A triclinic soda-lime feldspar. See Feldspar.
Definition of Oligoclase
1. Noun. (minerology) A plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called ''sunstone''. ¹
¹ Source: wiktionary.com
Definition of Oligoclase
1. [n -S]
Medical Definition of Oligoclase
1.
Lexicographical Neighbors of Oligoclase
Literary usage of Oligoclase
Below you will find example usage of this term as found in modern and/or classical literature:
1. Elements of Chemical and Physical Geology by Gustav Bischof (1859)
"oligoclase contains less lime than labradorite, and albite scarcely any, ...
The presence of oligoclase, or labradorite, or of both, in the greyish white ..."
2. Lectures on Mineralogy: Delivered at the School of Mines, Columbia College by Thomas Egleston (1886)
"oligoclase is sometimes found in perfect crystals, which resemble Ortho- clase
... When the mass is greenish it is probably oligoclase, but when the mass is ..."
3. Descriptive Mineralogy by William Shirley Bayley (1917)
"Excellent crystals of oligoclase occur at Arendal and at other places in Norway;
and at McComb and Fine, in St. Lawrence Co., NY Potash-oligoclase occurs in ..."
4. Bulletin by North Carolina Dept. of Conservation and Development, North Carolina Geological Survey (1883-1905), North Carolina Geological and Economic Survey (1907)
"Frank W. Clarke, made from a faint green variety, shows it to be a typical oligoclase.
The specific gravity waa determined to be 2.651. ..."
5. Reports of the North Carolina Geological and Economic Survey (1905)
"oligoclase. This mineral has been found at the Corundum Hill mine, where it is
associated with black tourmaline: it has also been found at the Carter mine ..."
6. Igneous Rocks: Composition, Texture and Classification, Description and by Joseph Paxson Iddings (1913)
"It contains phenocrysts of sani- dine and andesine, pale green pyroxene, and
dark-bordered hornblende. The groundmass consists of oligoclase, ..."
7. The Edinburgh New Philosophical Journal (1846)
"The so-called Red Albite of Kimito is an oligoclase.—Chod- new has analysed (in
Professor Henry Rose's ... and he has ascertained that it is an oligoclase. ..."
8. A Dictionary of Chemistry and the Allied Branches of Other Sciences by Henry Watts (1866)
"In oligoclase from the Ural (c), and some others, the proportion of alumina
appears to be considerably greater ; this may arise from loss of alkalis by ..."
Other Resources:
