diabase

IPA(Pronunciation)

Noun

countable uncountable

(geology) A fine-grained igneous rock composed mostly of pyroxene and feldspar.

Japanese Meaning

微細粒の火成岩で、主に輝石と長石から構成される岩石

The cliff face was composed of dark diabase that resisted erosion better than the surrounding sandstone.

崖の岩肌は周囲の砂岩よりも侵食に強い黒い斑れい岩でできていた。

Sense（1）

(geology) A fine-grained igneous rock composed mostly of pyroxene and feldspar.

diabases

（ plural ）