chilun

Welcome to visit us!

[email protected]

Home > Extracting Gold Powder In Quartz Sandstone

Extracting Gold Powder In Quartz Sandstone

Extracting Gold Powder In Quartz Sandstone

Sep 26 2016 In many mines where labour ampc. is cheap and the quantity of ore great a few pennyweights of gold to the ton will pay to extract and even in a mine where the ore yields averagely nearly 1 - oz. per ton the amount of gold in bulk is very small compared to that of quartz say equal to 5 sovereigns in 14 or 15 cubic feet of quartz.

Send Message Chat Online