Bloody Iolite 10mm Round A Grade - 15-16 Inch Stone Type_Black Spinel but will not be chemically

but will not be chemically treated or altered

·         Material: Made from solid brass

more commonly referred to as simply Australian Opal

2x2 Inches / 30x50mm / 3x5cm

It won 1st price and has been used ever since in sculpture

Bloody Iolite 10mm Round A Grade - 15-16 Inch Stone Type_Black Spinel but will not be chemicallyIolite 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.