Bloody Iolite 8mm Round - 15-16 Inch 2-2.5mm Quartz is the most common

Quartz is the most common mineral found on the face of the earth and occurs in all environments and all rock types - sedimentary

These Muonionalusta Meteorite beads

reddish to browns

Natural Agate is a variety of banded Chalcedony

Bloody Iolite 8mm Round - 15-16 Inch 2-2.5mm Quartz is the most commonIolite 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.