eulytite
(mineralogy) A mineral, consisting chiefly of the silicate of bismuth.
In a dull manner; without liveliness; without lustre.
The doctrine of refracted sound; diacoustics.
(mineralogy) A monoclinic-prismatic mineral containing aluminum, fluorine, hydrogen, iron, magnesium, oxygen, potassium, silicon, sodium, and titanium.
地質学者はビスマス珪酸塩鉱物の標本を注意深く分類し、顕微鏡で見たビスマスに富む珪酸塩構造と独特の光沢を記録した。
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