Agate is a type of chalcedony mineral that is known for its...

Agua Nueva Agate is a type of agate that is found in...

Amazonite is a semi-precious gemstone that is known for its distinctive blue-green...

Amber is a fossilized tree resin that has been valued for its...

Amethyst is a purple variety of the mineral quartz, and is one...

Amethyst is a purple variety of quartz (SiO2) and owes its violet color...

Beautiful Amethyst Sage Agate is found in the Bilk Mountain range in Nevada near...

Basalt is a dark colored volcanic rock formed from a magma of basic...

Angelite, Anhydrite, or anhydrous calcium sulfate, is a mineral with the chemical formula...

Apatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and...

Apple Valley Lace Agate from Morocco is a form of banded Chalcedony,...

Onyx primarily refers to the parallel banded variety of the silicate mineral chalcedony. Agate...

Fossils are spiritual stones, deeply connected to the earth, home and the...

Obsidian is produced when felsic lava extruded from a volcano cools rapidly with...

Aventurine is a form of quartz, characterized by its translucency and the presence...

A member of the Copper family. Azurite Malachite comes in both massive and crystalline...

Chert is a fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline silica. Chert is...

Quartz is a mineral composed of silicon and oxygen atoms in a...

Basalt is a common extrusive igneous (volcanic) rock formed from the rapid cooling...

Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating...

Binghamite (also called silkstone and cuyunite) is a type of agate stone...

Binthalya Opal is a multicolored, pastel opalite with beautiful soft colors.  A sedimentary rock...

The mineral aggregate heliotrope (from Greek ἥλιος, hḗlios “Sun”, τρέπειν, trépein “to...

Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating...