feldspar in the Oxford-Hachette French Dictionary

Translations for feldspar in the English»French Dictionary (Go to French»English)

Translations for feldspar in the French»English Dictionary (Go to English»French)

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feldspar
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Monolingual examples (not verified by PONS Editors)

English
The composition is 40% plagioclase, 20% clinopyroxene, 20% quartz, 5% ilmenite and small percentages of potassium feldspar and amphibole.
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Its reddish appearance is due to the presence of a high proportion of potassium feldspar.
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The color is due to a large amount of potassium feldspar.
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The island is rich in minerals such as ilmenite, feldspar, graphite, silica, kaolin, mica and thorium.
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Typical associated minerals present as large phenocrysts are members of the plagioclase feldspar solid solution series.
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It is a fully ordered triclinic modification of potassium feldspar and is dimorphous with orthoclase.
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It is defined by having more than 50% platy and elongated minerals, often finely interleaved with quartz and feldspar.
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A green tuffbreccia composed of pumice fragments, feldspar crystals and minor debris is recognizable in several areas.
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Granite is a felsic rock, meaning it is rich in potassium feldspar and quartz.
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Quartz monzonite consists of quartz and the two types of feldspar, but has less quartz than the 20% in granite.
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