Tags: phosphate rock
M is for Millstone Among the many European millstones, the geology of the French burrstone was prized for the effect of its quartz grain. ‘mil-st¯on A portmanteau created by blending the words ‘mill’ and ‘stone.’ “I can never cease to hanker for ...
SUBSCRIBE & FOLLOW
- VIDEO: Caterpillar builds world’s tallest sand castle, then destroys it 895 Views
- Sand saves a construction worker's life494 Views
- Last second Christmas gift ideas for construction workers281 Views
- Congress passes $1.1 trillion spending bill; cuts billions from federal construction accounts167 Views
- Get operations off to a good start with sound mine planning154 Views