簡介:"礦物硫化物及硫鹽雌黃Orpiment Sulfides and SulfosaltsConsisting of lead and sulfur, Galena may also contain small amounts of silver, copper or zinc. Its distinct features include lead gray color and streak, perfect cubic cleavage and high density.Galena is a relatively common sulfide mineral, found in a variety of occurrences and localities. In particular, it is abundant in the low temperature hydrothermal deposits. Galena that is formed in the oxidation zone of sulfide deposits is less stable and is often altered to secondary minerals, such as Anglesite and white lead.Among many lead-rich minerals on the earth, Galena is the primary ore of lead.與雄黃相同,主要由砷和硫所構成,然雄黃的分子式為AsS,雌黃則為As2S3,兩者均屬低溫熱液礦物,且彼此經常密切共生。 雌黃的顏色與條痕均為黃色,很容易與橙紅色的雄黃加以區別。"