389 results for agate

West Coast Mining owns the Polka Dot Agate Mine. The Polka Dot Agate Mine is near Madras, Oregon and they are open to visits! If you would like to experience digging at an actual mine site you can vi ...

Agates are members 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 ...

What is the difference between agates and jaspers? Agates and jaspers are both members of the Chalcedony stone family. Chalcedony (kal SED' nee) is any form of microcrystalline quartz, where the cr ...

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.

Montana Agate comes from near the Yellowstone River in Montana. The vein actually runs from the Yellowstone National Park in Wyoming to North Dakota. Montana Agate is one of the alluvial agates, i ...

Tree Agate is a form of Dendritic Agate. Tree Agate is a chalcedony with dendrite inclusions of moss colored green minerals. Tree Agate is an unusual agate as it is usually opaque white and doesn' ...

Fire Agate has such small layers that light entering them forms interference colors known as "fire." It is thought to be formed when hot water saturated with silica and iron oxide invaded cavities ...

Botswana Agate is a beautiful banded agate first discovered in 1971. Botswana Agates are found as small white nodules in siliceous volcanic rocks. They are usually covered with an opaque rind, an ...

Coyamito Agate comes from about 40 miles north of the famous Laguna Agate area. The area is in the state of Chihuahua, in Northern Mexico. Coyamito Agate is well known for its vibrant colors of y ...

Plume Agates are clear or milky with three-dimensional plant, or flower-like plumes floating in them. Plumes are different than dendrites, which are usually more branch-like or thin, or moss which ...

Turritella Agate is a brown stone with naturally occurring seashell fossils. These seashells are turreted, cone shaped shells exhibiting long slender whorls with spiral ribbing.  Turritella ...

Dendritic Agates have very thin tree-like inclusions of iron, manganese, or other metallic oxides that grow in natural fractures. These inclusions called dendrites were named after the Greek word ...