386 results for agate

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...

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...

Polyhedroid Agates are a rare type of formation found only in Paraiba, Brazil. Unlike the typical smooth, concentric banding seen in most agates, Polyhedroid Agates feature bands that have sharp,...

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...

Crazy Lace Agate is a banded chalcedony that is infused with iron and aluminum. Chalcedony is a microcrystalline quartz. Creamy browns, blacks, grays and golds (and occasional reds and pinks) swirl...

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. ...

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. Sowbelly...

Blue Lace Agate is a beautiful cryptocrystalline quartz stone or a member of the chalcedony family.   Generally only solid colored materials are actually named "chalcedony".  Most...

Orbicular Agate or Polka Dot Agate is so named for its spheres or polka dot pattern. The dots are sharp or fuzzy concentric orbs and they can range in size from very tiny up to quite large...

Limb cast are some of the most beautiful “Petrified Wood” around.  But what is a limb cast? Limb cast begin the same way that Petrified Wood does, trees are buried quickly under several hundred yards

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,...