US Dollar
Australian Dollar
Euro
CAD
Plume Agate
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 is more mossy-like.
Plume agate inclusions form when iron oxide, manganese oxide, or other oxides where present during the rock formation. The color of the plumes can vary depending on the material present when the rock forms, and in fact sometimes it can occur in multi-colors.
Moss, plumes, and dendrites are usually composed of iron or manganese oxides. Often moss and plume inclusions are found together in the same rock.
Bloody Basin Plume Agate from central Arizona is a good example of this, known for its intricate fiery yellow, orange and red colors with billowy plumes and moss patterns.
Graveyard Point Plume Agate is from near Graveyard Point in the Owyhee Mountains of far eastern Oregon, near the Idaho border. Graveyard Point was named from a fight between Indians and the U.S. Army in 1868. This agate formed in the cracks in basalt. The veins of agate range from 1 inch to about 18 inches thick, and can be a few feet long to 30 feet in length!
Stinking Water Plume aka White Plume Agate is found near the Stinking Water creek, in eastern Oregon. This area, east of Burns, is quite famous for great rockhounding. It has white to yellowish plumes in a milky white nearly transparent agate.
Rio Grande Agate is a beautiful Red Plume Agate from Woodward Ranch in Texas. The iron/manganese minerals present show as black or red plumes resembling trees or ferns.
Plume agate is actually pretty common, other types include Priday Plume from Oregon and Del Norte Plume from Colorado.
Agate is a type of chalcedony, usually at least slightly translucent and banded or with inclusions. It forms in concentric layers in a wide variety of colors and textures. Each individual agate forms by filling a cavity in host rock. Agate has a hardness of about 7 on the Moh's scale. The name is derived from its occurrence at the Achates River in southwestern Sicily.
OakRocks has been in the rock and mineral business for over 40 years.
We are a great source for Plume Agates, and carry a selection of unpolished and polished rocks and slabs.