9 results for selenite

Selenite is a form of Gypsum, which is one of the more common sedimentary minerals. It is a major rock forming mineral that produces massive beds, usually from precipitation out of highly...

Oklahoma has only a limited variety of rocks and minerals, mostly agate and petrified wood. However, Oklahoma is rich in commodity minerals throughout the state. These natural minerals, which...

North Dakota has lots of oil, gas, sand, coal and other natural resources. North Dakota is in the U.S. region known as the Great Plains. Eastern North Dakota lies in the level bed of the ancient...

Colorado, like most western states, has produced gold, copper, and silver. Gold was discovered in 1859 and the most productive gold mine in Colorado, the Cresson Mine, produced more than 258,000...

For many rock collectors it is not about beauty, or rarity, or location.  Fluorescence is about how that rock or mineral looks under a UV light.  Some ordinary and often ugly rocks actually glow (or a

    We have spent many summers digging dinosaur

What is my state's official state rock, mineral, or fossil?   Alabama designated Hematite as the state mineral in 1967, Hematite as the state rock in 1969, and Star Blue Quartz as the state...