Fluorite 15-22x26-30mm AAA Grade Medium Free Form Cabochon R0916 Its name is derived from

Its name is derived from the Greek word for blood

tan and ivory

an opaque silicon dioxide mineral and form of microcrystalline Chalcedony

giving some rubies a slightly brownish or purplish tint

and beads per strand counts may vary slightly from what is shown

Fluorite 15-22x26-30mm AAA Grade Medium Free Form Cabochon R0916 Its name is derived fromFluorite 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