16-Inch Gemstones

This stone is a combination of two very similar materials: Azurite is a deep blue mineral produced by weathered copper ore deposits, and over time,...

Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks. These include annite, phl...

Black Eye Agate is a variety of Sardonyx which has a Sard base, typically of brown or black, with bands of white Onyx running through it. Sard is n...

Black Silverleaf Jasper is a rare form of Jasper, characterized by its color range of black, gray and white and its swirling, leafy patterns. It is...

Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...

Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...

Tourmaline naturally occurs in a full color spectrum and is used as both a trade name and as a gemological name for a group of minerals of varying ...

Blue Apatite ranges in color from light teal to blue to bright blue to dark blue to green. It can be easily confused with other minerals due to its...

Blue Apatite ranges in color from light teal to blue to bright blue to dark blue to green. It can be easily confused with other minerals due to its...

Blue Apatite ranges in color from light teal to blue to bright blue to dark blue to green. It can be easily confused with other minerals due to its...

Moonstone naturally occurs in a broad spectrum of colors, but is most commonly associated with white, gray and peach. It's soft chatoyancy is remin...

Moonstone naturally occurs in a broad spectrum of colors, but is most commonly associated with white, gray and peach. It's soft chatoyancy is remin...

Botswana Agate displays highly defined parallel banding, usually in white on hues of brown, gray, pink, tan, apricot and purplish red. Botswana Aga...

Botswana Agate displays highly defined parallel banding, usually in white on hues of brown, gray, pink, tan, apricot and purplish red. Botswana Aga...

Botswana Agate displays highly defined parallel banding, usually in white on hues of brown, gray, pink, tan, apricot and purplish red. Botswana Aga...

Brazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally tran...

Brazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally tran...

Brazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally tran...

Brazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally tran...

Brazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally tran...

Cacoxenite is the trade name for this naturally occurring blend of seven stone types. It was originally named for the visible inclusions of the min...

Cacoxenite is the trade name for this naturally occurring blend of seven stone types. It was originally named for the visible inclusions of the min...

Cacoxenite is the trade name for this naturally occurring blend of seven stone types. It was originally named for the visible inclusions of the min...