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Dioptase

資料來源 : pyDict

透視石

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Dioptase \Di*op"tase\, n. [Gr. ? = dia` through + ? to see: cf.
   F. dioptase.] (Min.)
   A hydrous silicate of copper, occurring in emerald-green
   crystals.
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