40 results for dolomite

After Quartz, Calcite is the most next common mineral on the face of the Earth. Calcite comprises about 4% by weight of the Earth's crust. It is found throughout the world in sedimentary, meta

Tennessee has more mineral resources than any other state east of the Mississippi, except North Carolina. Limestone and dolomite, bituminous coal, lead, zinc, ball clay, sand and gravel, phosphate,...

Blue Lace Agate is a beautiful cryptocrystalline quartz stone or a member of the chalcedony family.   Generally only solid colored materials are actually named "chalcedony".  Most...

Lapis Lazuli (often just referred to as Lapis) is an opaque, bright blue stone consisting mainly of Diopside and Lazurite. Lapis often has gold flecks (Pyrite) or whiteish veins (Calcite)...

Tiffany Stone, also called Bertrandite, is a unique purple semiprecious stone material from Utah. It is actually an Opalized Fluorite, or an Opalite (yes, there is a such a thing as...

  Missouri's major mineral resources include lead ore, iron ore, zinc, barite, and limestone. Galena was named the official state mineral of Missouri in 1967. Galena is a major source of lead...

Kentucky may not have lots of rocks and minerals, but it has lots of fossils. Long ago Kentucky was covered in shallow tropical seas, so brachiopod, coral, sponge, crinoid, trilobite, and nautiloid...

Not all of New York is equally endowed with gem grade rocks and minerals. But mining occurs in every county in New York State except Bronx, Kings, New York, Queens and Richmond. More than half of...

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...