389 results for agate

Belief in the spiritual healing properties of rocks and crystals goes back beyond recorded history. You can read more about the actual use of rocks in minerals in ancient times for medicinal purposes ...

Petrified Wood is found all over the world. Countries with well-known petrified wood deposits include: Argentina, Australia, Belgium, Brazil, Canada, China, The Czech Republic, Germany, Ecuador, Egyp ...

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 o ...

  Michigan has 1,853 records of mining mines according to the U.S.G.S. Lower Michigan is quite level and not much elevated above the Great Lakes, and is underlain by sedimentary deposits of li ...

Jasper is a member of the chalcedony family. Chalcedony (kal SED' nee) is any form of microcrystalline quartz, where the crystals are too small to be seen without high magnification. However, in the ...

Mississippi does not have many rock and mineral resources. Much of Mississippi is built of sand, gravel, and mud brought down by the Mississippi River and which has filled a great bay in the Gulf Co ...

Ocean Jasper is from a silicified rhyolite ash flow off the northwest coast of Madagascar. The area is near the village of Marovato.  It was discovered around 2000 and was vary plentiful at ...

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 Lak ...

Indiana is mostly sedimentary rock brought by ancient seas and glaciers. This is great for fossils, but not great for rocks and minerals. During the past 2 million years, two major glacial advances ...

Idaho is a great state for rockhounding.  In fact Idaho's nickname is 'The Gem State’. It even has a county known as Gem County. The state is also home to an incredible variety of geol ...

Vermont is known for its marble, serpentine, and other metamorphic rocks. Much of the area of Vermont is broken up by the Green Mountains and, parallel with them in the west, the Taconic Mountains.

Peru is one of the leading producers of copper, gold, lead and silver. Today, Peru is the largest gold producer in Latin America, and the sixth-largest worldwide, generating billions of dollars in ...