Prehnite 4mm Round Faceted AA Grade - 15-16 Inch featured_04182024 blue-greens and greens swirled with

blue-greens and greens swirled with yellow-green

The most common include: purple lepidolite

It has been mistaken for ruby and sapphire at times

which may range from yellow to green to olive green to brownish green

Prehnite 4mm Round Faceted AA Grade - 15-16 Inch featured_04182024 blue-greens and greens swirled withPrehnite 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.