Show US U.S. tests for shale minerals to be made The federal government h Is' Is testing to see If It the price of oi oil produced from oil shale can be reduced by extracting other minerals round in the rock along with the oil The U U. U S. S Bureau of Mines is drilling in northwest Colorados Colorado's Rio Blanco County to try to determine if enough h dh and can be mined from the shale rock to bring the price of oil produced from the shale below that of conventional petroleum CAN be used In Inthe inthe inthe the making of or aluminum while which Is naturally naturally- baking soda can be used to clean sulfur gases from the exhaust of coal burning potter plants The federal agency is using the second largest rotary drill in the world to bore a foot 10 diameter shaft 2400 feet into the county's deep shale formations formations for for- as part of an experiment experiment experiment ex ex- that will continue for forat forat forat at least five years The bureau will process rock taken out of the ground to extract extract extract ex ex- tract not only oil but the other two minerals as well Vast amounts of oil are locked in shale rock under northwest Colorado and other parts of the American West The shale oil deposits have been mentioned as one possible future source of petroleum for the United States but has not yet gotten past the experimental stage |