Last Updated：2025/11/20
Sentence
薄片を調べた岩石学者は、安山岩全体に散在する、火成岩の冷却後期に形成された緑から黒色の角閃石の粒を確認した。
Quizzes for review
The petrographer examined the thin section and noted hornblende grains scattered throughout the andesite.
See correct answer
The petrographer examined the thin section and noted hornblende grains scattered throughout the andesite.
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Related words
hornblende
IPA(Pronunciation)
Noun
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uncountable
Japanese Meaning
角閃石：複雑な構造を持つ、緑色から黒色の閃石鉱物。火成岩の冷却の最終段階で結晶化することが多い。
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