Bloody Iolite 8mm Round - 15-16 Inch Inc. It has a hardness of

It has a hardness of 8 on the Mohs hardness scale

” Tourmaline began to be highly prized after George Kunz

All species of garnets possess similar physical properties and crystal forms

Usually occurring in a deep red color

the mineral was named for French paleontologist Eugene Durmortier (1803-1873)

Bloody Iolite 8mm Round - 15-16 Inch Inc. It has a hardness ofIolite most commonly occurs in shades of blue to gray, violet or indigo. It displays a visual property called pleochroism, which means that it can appear to be different colors as it shifts in the light. According to Norse legend, Viking explorers used thin pieces of Iolite as the worlds first polarizing lens to help them determine the exact location of the sun for navigation.