Fluorite 2mm Cube Table Cut A Grade - 15-16 Inch Russian Lace Agate It may also contain rainbow-colored

It may also contain rainbow-colored or sparkling inclusions

Iron gives them blue

Rhyolite has a non to crystalline composition similar to granite but with a smaller grain size

The name "heliodor" is derived from two Greek words: helios "sun

These stones have unique green pigmentation when compared to other turquoise sourced from the region

Fluorite 2mm Cube Table Cut A Grade - 15-16 Inch Russian Lace Agate It may also contain rainbow-coloredFluorite 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