feldspar
Longman Dictionary of Contemporary English 5++LDOCE 5++feld·spar /ˈfeldspɑː $ -ɑːr/ noun [uncountable] HEGa type of grey or white mineral 长石〔一种灰色或白色的矿物〕
Examples from the Corpus
feldspar• Electron microprobe element maps show the distribution and quantity of alkali feldspar in the fine-grained groundmass of the altered basalts.• Ankerite, haematite, mica and feldspar have also been identified in smaller quantities.• Petrological observations show excess feldspar in many basaltic lavas which is most easily explained by crystal settling.• If feldspar is present, it is in minor volumes or traces.• Finally, a temperature is reached when a third mineral, feldspar, joins in.• Quartz, feldspar, and the clay minerals make up the bulk of that contribution.• They contain large amounts of the feldspar mineral.Origin feldspar (1700-1800) German feldspath, from feld “field” + spath type of mineralfeld·spar nounChineseSyllable
type mineral of or grey white a Corpus
feldspar
feld‧spar /ˈfeldspɑː $ -ɑːr/
noun [uncountable]
feld‧spar /ˈfeldspɑː $ -ɑːr/
noun [uncountable] Date: 1700-1800
Language: German
Origin: feldspath, from feld 'field' + spath type of mineral
a type of grey or white mineral
Language: German
Origin: feldspath, from feld 'field' + spath type of mineral