Crater

Banded gemstone, variety of the mineral chalcedony.

Crater

Gemstone notable for its color change, appearing green in daylight, but red under incandescent light; a variety of chrysoberyl.

Crater

Red to violet-red gemstone, a variety of the mineral garnet.

Crater

Light bluish-green gemstone, a variety of the mineral orthoclase.

Crater

Violet gemstone, a variety of the mineral quartz.

Crater

Blue-green and light blue gemstone, a variety of the mineral beryl.

Crater

Yellow or brownish-green gemstone, the third hardest gemstone after diamond and sapphire.

Crater

Yellow gemstone, a variety of the mineral quartz.

Crater

Rare and precious gemstone, the hardest natural substance.

Crater

Green gemstone, a variety of the mineral beryl.

Crater

Group of related minerals found in a variety of colors and often cut as gemstones.

Crater

Semitransparent to translucent gemstone, a variety of the minerals nephrite and jadeite.

Crater

Lapis Lazuli; gemstone formed from a rock containing a number of minerals, the quality and value determined by the color and abundance of the blue mineral lazurite.

Crater

Translucent to opaque gemstone, usually banded or rich green and often found with azurite.

Crater

Volcanic glass used as a gemstone.

Crater

Gemstone variety of the mineral chalcedony.

Crater

Non-crystalline gemstone noted for its rich play of colors when turned in the light.

Crater

Green gemstone, a variety of the mineral olivine.

Crater

All colors of gemstones of the mineral corundum (except red, which is the gemstone ruby) are called sapphires.

Crater

Gemstone that occurs in a wide variety of colors.

Crater

Gemstone noted for its beautiful, multi-colored prismatic crystals.

Crater

Opaque blue-to-green mineral of arid climates that has been used as a gemstone for thousands of years.

Crater

Gemstone that is colorless in its pure form, but also found in yellows, browns, and reds.