252 results for chalcedony

Beautiful Amethyst Sage Agate (sometimes called Purple Sage) is named for its purple/gray color and lovely black manganese dendrites. It is found in the Bilk Mountain range near Denio, Nevada.&nbs ...

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

Willow Creek Jasper is a well known semi precious gemstone material that comes from about 15 miles north of Eagle, Idaho, which is northeast of Boise. The mine has been producing material for ...

Imperial Jasper and Royal Imperial Jasper are dense, very fine grained and exceptionally hard jaspers, making them both one of the highly prized porcelain jaspers. Because of their fine grain, po ...

Brazilian Agate and Piranha Agate are some of the most beautiful banded agates ever found. Brazil has the most massive deposits of agate in the world and they are mostly found in southern Brazil.

Moss Agate is so named for its mossy shaped or bush like inclusions. These are usually formed with mineral impurities, and are often growths of iron or manganese oxides. Moss Agate is found in ma ...

Laguna Agate comes from Northern Mexico and is well known for its vibrant colors of reds! The Laguna Agate area is in the state of Chihuahua, from the Estacion Ojo Laguna area, about 150 miles sou ...

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 also is home to an incredible variety of geolo ...

There are rocks and minerals to be found in Iowa, but the variety is low. Iowa is mostly rolling prairie land deposited by glacial activity over sedimentary rock. In the northeast corner, where ther ...

In Ohio fossils are abundant, but with one notable exception, gem grade rocks and minerals are rare. The exception is beautiful and colorful Ohio Flint. Flint, a type of chalcedony, is found in Flin ...

The Black Hills, South Dakota is one of the top 5 places in the U.S. for rocks and minerals. In addition to agate and rose quartz, there are more than 40 other minerals found here: including copper, ...

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 ...