ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wiktionary
Partial calque of German Feldspat, formed from Feld (“field”) + Spat (“spar”), the second element replaced with the English cognate spar.
feldspar (countable かつ uncountable, 複数形 feldspars)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/28 18:15 UTC 版)
Feldspars (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8) are a group of rock-forming tectosilicate minerals which make up as much as 60% of the Earth's crust.
feldspar