Loudoun County, ia. During 2006, five mining operations were active in Loudoun County producing crushed included mines operated by Loudoun Quarries and Chantilly Crushed Stone, Inc., both part of the Gudelsky Group, and three sites operated by Luck Stone Corporation at Leesburg, Goose Creek, and Bull Run.
Measuring the Amount of Metal Carbonate in an Ore. 2. Place the copper carbonate ore into a 250 cm3 beaker 3. Measure out exactly 25 cm3 of hydrochloric acid 4. Pour the hydrochloric acid into the beaker of copper carbonate ore, start the stop clock then swirl once 5.