MARCASITE FeS2 (orthorhombic) . Cape Blanc Nez,Calais,France . A row of rosettes of xls to 1/2 inch strung along the crest of a 4inch rock . 白鐵礦晶体多作板狀，雙晶常見集結成雞冠狀，矛頭狀，金屬光澤， 經風化後變為淡青銅黃色．標本不易保存．

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NO.144