Sapphire Faceted Hexagon & Hex tubes 15-16 InchSapphires are precious gemstones, but unlike rubies, they come in a rainbow of colors besides red! They are all varieties of the mineral corundum, known for its incredible hardness, second only to diamond . This makes sapphires very durable and scratch resistant. Formed deep underground during the cooling of magma, sapphires get their various colors from trace elements. Iron gives them blue, the most famous sapphire color, while titanium can create

resulting in fossils that are chalk-white

Azurite in crystal form is extremely rare and expensive

or a sandy beach blending into a tropical bay

It has been greatly sought after throughout history and was at times valued as highly as Diamond

River Stone is a form of limestone composed of quartz

a form of silica with a cryptocrystalline structure that incorporates Moganite along with the Quartz

Shattuckite is a rare copper silicate hydroxide mineral

Its bright green coloration is due to traces of chromium

Amazonite is named for the Amazon River in Brazil

often found with white

Trace amounts of iron can also affect the hue

honey or brown