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