Last Updated：2025/11/26
Sentence
博物館の鉱物コレクションには、ビスマス、銅、鉛、硫黄を含む直方晶系の銀灰色の鉱物の標本が金属光沢を放ち、その結晶はビスマスや銅を豊富に含んでいた。
Quizzes for review
In the museum's mineral collection, a specimen of friedrichite gleamed with a silver-gray luster, its bismuth- and copper-bearing crystals arranged in an orthorhombic-pyramidal form.
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In the museum's mineral collection, a specimen of friedrichite gleamed with a silver-gray luster, its bismuth- and copper-bearing crystals arranged in an orthorhombic-pyramidal form.
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