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CHALCOPYRITE CuFeS2 (tetragonal) . Brass-yellow tarnishing pseudotetrahedral crystals with striated faces . Cherokee County, Kansas . 黃銅礦為銅礦的重要來源,硬度3.5∼4 ,金屬光澤, 金黃色似黃鐵礦,晶形似四面体,偶見貫入雙晶 . 本礦結晶巨大而完美,為教科書級的樣本.
經典名礦欣賞.2.3.4 NO.541