Prehnite 6mm Coin Faceted A Grade - 15-16 Inch Multi Blue Crazy Lace Agate is

Blue Crazy Lace Agate is actually Mexican Crazy Lace Agate that has been color enhanced with blue to bring out the beautiful patterns in the stone

Rhyolite has a non to crystalline composition similar to granite but with a smaller grain size

Viking explorers used thin pieces of Iolite as the world’s first polarizing lens to help them determine the exact location of the sun for navigation

It's soft chatoyancy is reminscent of the moon's light

laced with bands or swirls of brighter blue

Prehnite 6mm Coin Faceted A Grade - 15-16 Inch Multi Blue Crazy Lace Agate isPrehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South Africa in 1774. Prehnite is translucent to transparent, in colors from light green to yellow green to olive, with occasional inclusions of Black Tourmaline that crisscross the stone in fibrous patterns. It is a phyllosilicate composed of silicon, calcium and aluminum with trace amounts of iron.