美國 Scott 出品，原廠包裝。
這套共有50種主要的礦物，是用來給學生學習礦物分類的最佳教材。
所有標本組均附有詳細的英文說明書。
This collection includes examples of silicates, oxides, sulfates, phosphates, and other major mineral groups as classified in Dana’s Textbook of Mineralogy.
50 specimens approximately 1" x 1", each specimen is labeled for identification.
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