Definition of oligoclase in English:

oligoclase

noun ˈɒlɪɡə(ʊ)kleɪzˈɑləɡoʊˌkleɪs

mass noun

A feldspar mineral common in siliceous igneous rocks, consisting of a sodium-rich plagioclase (with more calcium than albite).
奥长石
Example sentencesExamples
- They recognized kyanite-staurolite assemblages in pelites to the north of the Annagh Gneiss Complex exposures, but only garnet and oligoclase to the south.
- Here it was found sparsely as rounded grains associated with pargasite, diopside, oligoclase and lazurite.
- Granite sample RHGI can be modelled by continuing this felsic scheme, for example with 22% fractionation of oligoclase, amphibole, biotite and the usual minor apatite and titanite.
- They range from bytownite - labradorite in basalts and gabbros, andesine - oligoclase in diorites and andesites to albite in granites and rhyolites.
- It is composed of quartz, oligoclase, and microcline, with minor garnet, biotite, muscovite and iron-oxides.
- However, this assumption is inconsistent with the fairly simultaneous appearance of the second garnet generation and oligoclase.

Origin

Mid 19th century: from oligo- 'relatively little' + Greek klasis 'breaking' (because thought to have a less perfect cleavage than albite).

Definition of oligoclase in US English:

oligoclase

nounˈɑləɡoʊˌkleɪsˈäləɡōˌklās

A feldspar mineral common in siliceous igneous rocks, consisting of a sodium-rich plagioclase (with more calcium than albite).
奥长石
Example sentencesExamples
- They range from bytownite - labradorite in basalts and gabbros, andesine - oligoclase in diorites and andesites to albite in granites and rhyolites.
- They recognized kyanite-staurolite assemblages in pelites to the north of the Annagh Gneiss Complex exposures, but only garnet and oligoclase to the south.
- Granite sample RHGI can be modelled by continuing this felsic scheme, for example with 22% fractionation of oligoclase, amphibole, biotite and the usual minor apatite and titanite.
- Here it was found sparsely as rounded grains associated with pargasite, diopside, oligoclase and lazurite.
- However, this assumption is inconsistent with the fairly simultaneous appearance of the second garnet generation and oligoclase.
- It is composed of quartz, oligoclase, and microcline, with minor garnet, biotite, muscovite and iron-oxides.

Origin

Mid 19th century: from oligo- ‘relatively little’ + Greek klasis ‘breaking’ (because thought to have a less perfect cleavage than albite).

单词	oligoclase
释义	Definition of oligoclase in English: oligoclase noun ˈɒlɪɡə(ʊ)kleɪzˈɑləɡoʊˌkleɪs mass noun A feldspar mineral common in siliceous igneous rocks, consisting of a sodium-rich plagioclase (with more calcium than albite). 奥长石 Example sentencesExamples They recognized kyanite-staurolite assemblages in pelites to the north of the Annagh Gneiss Complex exposures, but only garnet and oligoclase to the south. Here it was found sparsely as rounded grains associated with pargasite, diopside, oligoclase and lazurite. Granite sample RHGI can be modelled by continuing this felsic scheme, for example with 22% fractionation of oligoclase, amphibole, biotite and the usual minor apatite and titanite. They range from bytownite - labradorite in basalts and gabbros, andesine - oligoclase in diorites and andesites to albite in granites and rhyolites. It is composed of quartz, oligoclase, and microcline, with minor garnet, biotite, muscovite and iron-oxides. However, this assumption is inconsistent with the fairly simultaneous appearance of the second garnet generation and oligoclase. Origin Mid 19th century: from oligo- 'relatively little' + Greek klasis 'breaking' (because thought to have a less perfect cleavage than albite). Definition of oligoclase in US English: oligoclase nounˈɑləɡoʊˌkleɪsˈäləɡōˌklās A feldspar mineral common in siliceous igneous rocks, consisting of a sodium-rich plagioclase (with more calcium than albite). 奥长石 Example sentencesExamples They range from bytownite - labradorite in basalts and gabbros, andesine - oligoclase in diorites and andesites to albite in granites and rhyolites. They recognized kyanite-staurolite assemblages in pelites to the north of the Annagh Gneiss Complex exposures, but only garnet and oligoclase to the south. Granite sample RHGI can be modelled by continuing this felsic scheme, for example with 22% fractionation of oligoclase, amphibole, biotite and the usual minor apatite and titanite. Here it was found sparsely as rounded grains associated with pargasite, diopside, oligoclase and lazurite. However, this assumption is inconsistent with the fairly simultaneous appearance of the second garnet generation and oligoclase. It is composed of quartz, oligoclase, and microcline, with minor garnet, biotite, muscovite and iron-oxides. Origin Mid 19th century: from oligo- ‘relatively little’ + Greek klasis ‘breaking’ (because thought to have a less perfect cleavage than albite).
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