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MAGNESITE MgCO3 (trigonal) . calcite group . White translucent rhombohedral crystals . Brumado, Bahia, Brazil . 菱鎂礦晶体少見,常作菱形少見柱狀,硬度 3.5~5,玻璃至土狀光澤, 外觀似白雲石,但比白雲石重.遇冷的稀鹽酸不易起泡,此可以和方解石區別.
著名產地:Austria; Bahia, Brazil; ; California, USA.
經典名礦欣賞 .2 NO.629