258 results for chalcedony

Sagenite Agate, or Sagenitic Agate, is any agate having acicular or needle-like mineral or crystal growths. These "sagenites" usually intersect in a grid or grill-like pattern, but the hair...

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. ...

Deschutes Jasper is a great brown, scenic, porcelain jasper from Oregon. It often has black dendrite inclusions.  Jasper is an opaque form of Chalcedony.  Deschutes Jasper was formed as...

Mookaite Jasper is a warm, earthy flood of reds, yellows and browns. It is formed as a sedimentary stone in erosion zones and as a filler in cracks. Mookaite Jasper is named for where is was...

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...

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...

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...

Imperial Jasper and Royal Imperial Jasper are dense, very fine grained and exceptionally hard jaspers. Both of them are highly prized porcelain jaspers. Because of their fine grain, porcelain...

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

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

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...