Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch 5pf4242026 however they are not currently

however they are not currently sourced from that particular region

These inclusions are chromite

Mexican Black and Red Zebra Jasper has banded and marbled patterns of translucent to opaque milky white

as well as grays

so named because the ancient Incas believed the stone to be the petrified blood of their ancestral rulers

Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch 5pf4242026 however they are not currentlyPrehnite 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.