摘要
针铁矿是长江中下游铁帽型金矿床矿石的最主要组成矿物,也是最主要的载金矿物。作者们将代家冲和吴家金矿石中的针铁矿划分为致密状、粉末状和针状三种形态类型。由于这三种形态类型针铁矿在含水量、结晶程度、颗粒直径和晶体结构紧密程度上的不同决定它们在反射率、颜色指数、X射线衍射图谱、晶胞参数、热效应、红外光谱和穆斯鲍尔谱以至含金性上均有所差别。
In the middle and lower reaches of Yangtze River, goethite is the chiefest component as well as the chiefest gold carrier mineral of gossan-type gold deposits. The authors classified the shapes of goethite from Daijiachong and Wujia gold ores into three types, i. e., compacting, powdery and needle-like. Because of the difference of these three goethite types in water content, crystallinity, grain size and crystal structure compacting degree, their reflectance, color indices, x-ray diffraction spectrum, cell parameter,differential thermal effect, infrared spectrum, Mossbauer spectrum and even gold-bearing ability are also different.
出处
《矿物岩石》
CAS
CSCD
1989年第4期1-7,共7页
Mineralogy and Petrology
