次显微金在黄铁矿和毒砂中的赋存状态新探讨  

A FURTHER ON THE EXISTING STATES OF SUBMICRO-GOLD IN PYRITE AND ARSENOPYRITE

作　　者：王玉明[1] 季寿元[2] 陈克荣[2] 

机构地区：[1]山西大学师范学院地理系,太原030012 [2]南京大学地球科学系,南京210008

出　　处：《矿物学报》1994年第1期83-87,共5页Acta Mineralogica Sinica

摘　　要：重新认以了含金黄铁矿、含金毒砂中次显微金的电子顺磁共振实验和溶解实验的结果。指出它们均不能作为存在类质同象金的证据，含金黄铁矿和含金毒砂中的顺磁中心可能由As、S之间的类质同象取代引起；硝酸溶解金的载体矿物后溶液中出现的Au3-离子可能来自金的硫化物的微包裹体金。进而认为含金黄铁矿和含金每秒中不可能存在类质同象金。The results of electron paramagnetic resonance and selected dissolving experiments onsubmicro-gold in pyrite and arsenopyrite have been re-evaluated. It is pointed out and that theabove experimental results can not be regarded as evidence of the existence of gold as solid solution in both minerals. The Paramagnetic centre of Au-bearing pyrite and arsenopyrite may be attributed to the replacement of S by As as solid solution in the minerals. The ion Au3+ appearing inthe solution after the Au-bearing minerals were dissolved by nitric acid may come from goldtelluride as micro-inclusions. Therefore, it is considered that there may exist isomorphic gold inAu-bearing pyrite and arsenopyrite.

关 键 词：黄铁矿 毒砂 次显微金 赋存状态 

分 类 号：P578.292[天文地球—矿物学]