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CALCITE CaCO3 (trigonal) . Tsumeb, Namibia . 方解石晶形常見菱面體∼Rhombohedra,偏三角面體∼Scalenohedra.本礦顯現 少見的白色透明柱狀晶體,相當難得!
經典名礦欣賞.2.3.4.5.6 NO.376