White Gilson Opal measures 4mm with a round shape and a flat bottom. Priced per piece.

White 8X5mm PEAR cut Gilson Opal

Small Glass Mithral Crystal will make a great addition to your work of art.

White Rough Gilson Opal sold by the gram.

White Polished Gilson Opal sold by the gram. Polished Opals are great for use in glass art. Since they are polished, there are less pores on the Opal surface, meaning...

White Gilson Opal Shards and Dust are perfect for making pulled opal cane and tubing, great for marble encasement, and many other applications. These shards are a mixture comparable to...

Black Rough Gilson Opal sold by the gram.

Black Polished Gilson Opal sold by the gram. Polished Opals are great for use in glass art. Since they are polished, there are less pores on the Opal surface, meaning...

Black Gilson Opal Shards and Dust are perfect for making pulled opal cane and tubing, great for marble encasement, and many other applications. These shards are a mixture comparable to...

Imagine an asteroid crashing at warp speed into the Earth. The result of such a collision issues forth such intense heat that Moldavite Green Rock is formed. Moldavite is a...

Large Glass Mithral Crystal will make a great addition to your work of art.

This Gilson Opal is approximated 4.8mm x 4.8mm. These are sold by the piece.