The wallrock alterations of gold mineralization include silicification,pyritization,sericitization,potassic alteration,chloritization and carbonitization.
So you have to store them under oil and these ones have been coated in gold for CT scanning but nonetheless they are you can see that the level of preservation here thanks to this pyritization.
特征,
属构造蚀变岩型。
下，这些已经涂上
用于CT扫描的金，但
此，你可以看到由于这种黄铁矿化，这里的保存水平。
