Fluorite 12mm AAA Grade Coin Cabochon New Gemstones The most precious Fire Opal

The most precious Fire Opal has flashes of iridescence and is known as Precious Fire Opal or “Firmament Stone

It occurs with wave-like bands of charcoal gray

is aptly named for its shades of gold

making it suitable for jewelry design while maintaining its natural appearance

They are all varieties of the mineral corundum

Fluorite 12mm AAA Grade Coin Cabochon New Gemstones The most precious Fire OpalFluorite is a luminous, soft and glassy stone, sometimes referred to as the most colorful mineral in the world. It is one of the most sought to after minerals among gem and mineral collectors, second only to Quartz. The term fluorescent was inspired by Fluorite, one of the first fluorescent minerals ever studied. It is frequently fluorescent under ultraviolet light, and this phenomenon is thought to be due to impurities of yttrium or organic matter