69 results for dendrite

The best picture jaspers in the world come from the Oregon-Idaho border. Jasper is a member of the chalcedony family.Chalcedony, pronounced kal sid nee, is any form of microcrystalline quartz. &ldquo ...

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 ...

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' ...

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 ...

Sowbelly Amethyst Agate or Vein Amethyst Agate with Silver Dendrites A lovely material with the unfortunate name of Sowbelly Agate, but it is also known as Vein Amethyst or Amethyst Agate. Sowbel ...

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 inclusions are gener ...

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 ...

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 ...

Rhodonite is pink semiprecious stone, that is a metamorphic manganese metasilicate with a hardness of 5.5 to 6.5. The black dendritic inclusions are manganese oxide. It may also have white inclus ...

Deschutes Jasper is a 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 ...

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.

Oregon is known for jaspers, agates, thundereggs, and petrified wood. Oregon's terrain varies from beaches to pine covered mountains to barren desert.  Graveyard Point Plume, Priday, Stinkin ...