| Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...STATE, Montana is rich in mineral and gemstone localities. The state motto, Ora y Plata meaning “gold and...silver,” and the state seal with its representation of mining tools clearly proclaim Montana’s mining origins...production of copper, coal, gold, lead, manganese, phosphate, silver, talc, vermiculite, and zinc is impressive...official state gemstones: agate and sapphire. An extensive body of gem and mineral literature has been published |
