摘要
在鉴定金矿石的光片时 ,有时见不到金矿物 ,这是由多种原因引起的。我们通过改进制片工艺及抛光前对光片进行烘烤、煅烧等方法 ,使金矿石光片中金矿物可见几率提高 ,并可使许多原矿石中的不可见金归并加大 ,变为可见金。此外 ,本文还提到一种金矿石中经常存在的富铁黄铜矿 。
Sometimes,we can not catch sight of the gold mineral when determining the polished section of gold-bearing ore, it is caused by many reasons.By way of improving on the section-making technology and to reform the polished section adopted the bake-out and calcination methods before polishing ,the visible probability of gold mineral in the polished section of gold-bearing ore has raised,and many invisible gold in the rude ore has incorporated and grown,finally became the visible gold.In addition,a iron-rich chalcopyrite often existed in the gold-bearing ore is regarded as the indicator mineral of gold ore in some areas.
出处
《河南地质》
2000年第1期58-61,共4页
Henan Geology
关键词
金矿物
光片
黄铜矿
金矿石
鉴定过程
gold mineral
polished section
chalcopyrite
bake-out
calcination
