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出典:Wiktionary
From Ancient Greek κασσίτερος (kassíteros, “tin”).
cassiterite (countable かつ uncountable, 複数形 cassiterites)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/14 19:55 UTC 版)
Cassiterite is a tin oxide ore mineral, SnO2. It is generally opaque but is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite has been the chief tin ore throughout ancient history and remains the most important source of tin today.
名詞の変化形:
Cassiterite