ML009 Chalcopyrite / Siderite

姓名: 黃銅礦/菱鐵礦Name:
Chalcopyrite/ Siderite
化學式: CuFeS2/ FeCO3Chemical formula: CuFeS2/ FeCO3
莫氏硬度等級: 3.75 – 4.25Mohs scale of Hardness:
3.75 – 4.25
描述:顏色範圍從黃色到深棕色或黑色,後者歸因於錳的存在。菱鐵礦通常存在於熱液脈中,並與重晶石,螢石,方鉛礦等相關。  Description: Color ranges from yellow to dark brown or black, the latter being due to the presence of manganese. Siderite is commonly found in hydrothermal veins, and is associated with barite, fluorite, galena, and others.
挑戰:菱鐵礦通常存在於熱液脈中,並與重晶石,螢石,方鉛礦等相關。它也是頁岩和砂岩中常見的成岩礦物,有時會形成凝結物,從而包裹著三維保存的化石。  Challenge: Siderite is commonly found in hydrothermal veins, and is associated with barite, fluorite, galena, and others. It is also a common diagenetic mineral in shales and sandstones, where it sometimes forms concretions, which can encase three-dimensionally preserved fossils.