Prehnite 6mm Round AAA Grade - 15-16 Inch Canadian Jade It is believed to protect

It is believed to protect against threats and danger in high-risk situations

Yellow Opal is transparent to opaque

and originally came from much farther away

and forms within a host rock such as ironstone or sandstone

and turquoise is a leftover mineral from these practices

Prehnite 6mm Round AAA Grade - 15-16 Inch Canadian Jade It is believed to protectPrehnite 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.