Fluorite 10mm Round - 15-16 Inch (AAA) orange and rust are due

orange and rust are due to traces of hematite within the stone

it is a relative newcomer to the gem market

and as such is a particularly soft stone

000 years ago

and short prismatic crystals

Fluorite 10mm Round - 15-16 Inch (AAA) orange and rust are dueFluorite 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 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