price price of silica sand per ton
142 SAND AND GRAVEL INDUSTRIAL1 USGS Price average value dollars per ton 4730 3540 5200 5640 5040 Employment quarry and mill numbere 3500 3500 4000 4000 4000 Net import reliance3 as a percentage of apparent consumption E E E E E Recycling Some foundry sand is recycled and recycled cullet pieces of glass represents a significant proportion of reused silica