English Dictionary

pyroxene

IPA（発音記号）

/paɪˈɹɒk.siːn/

名詞

(mineralogy) Any of a group of crystalline minerals containing silicates of iron, magnesium and calcium.

日本語の意味

輝石：鉄、マグネシウム、カルシウムを含むケイ酸塩を主成分とする結晶性鉱物群

The basalt sample contained abundant pyroxene, which gave it a dark greenish-black color under the microscope.

その玄武岩試料には鉄・マグネシウム・カルシウムを含む一群の結晶性珪酸塩鉱物（輝石）が豊富に含まれており、顕微鏡下で暗い緑黒色を呈していた。

意味（1）

(mineralogy) Any of a group of crystalline minerals containing silicates of iron, magnesium and calcium.

By the pathside, there are occasional large boulders that shown black crystals the size of a fingernail; these are pyroxene minerals that had time to crystallise out deep within the chamber of liquid rock – or magma – beneath the volcano.

pyroxenes （ plural ）