Iolite 5x8mm Rondelle Faceted - 15-16 Inch White Howlite It is found in the

It is found in the Bilk Mountain range near Denio

Mookaite is formed by the ancient skeletal remains of radiolaria

It sometimes features dark brown to black dendritic inclusions that branch like tiny tree limbs through the stone

Opal is a natural gemstone made from silica mineral and 90% are found in Australia

Iolite 5x8mm Rondelle Faceted - 15-16 Inch White Howlite It is found in theIolite 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.