Sapphire 4-5mm Round - 15 Inch latest-2mmTC Gamma ray irradiation

Gamma ray irradiation

Lepidocrocite forms when iron-containing substances rust underwater

Aquamarine (blue)

which can be yellow

Coral has been used in personal adornment since antiquity

Sapphire 4-5mm Round - 15 Inch latest-2mmTC Gamma ray irradiationSapphires 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