Iolite Faceted 10mm Energy Prism - 15-16 Inch Stone Type_Zebra Jasper Rainbow Moonstone is named for

Rainbow Moonstone is named for its moon-like glow or chatoyancy

Ruby is a precious gemstone known for its deep red color

also known as Calligraphy Stone or Miriam Stone

but has been used historically to describe the transparent variety

Petersburg

Iolite Faceted 10mm Energy Prism - 15-16 Inch Stone Type_Zebra Jasper Rainbow Moonstone is named forIolite 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.