玻は璃り長ちょう石せき

noun

sanidine

A high-temperature potassium feldspar mineral; technical term used in geology and mineralogy.

• 玻は璃り長ちょう石せきは火か山ざん岩がんによく見みられる長ちょう石せきの一いっ種しゅです。

  Sanidine is a type of feldspar commonly found in volcanic rocks.