Prehnite
Named in 1789 after Hendrik Von Prehn (1733-1785), a Dutch colonial governor is credited with discovering Prehenite in 1774 at the Cape of Good Hope in Africa. Prehnite is composed of aluminium, calcium and silicon with a few specimens containing small trace of iron as well. Gem quality prehnite is neon yellow-green. Contemporary stone lore rumors that Prehnite eases worries and restlessness, aids spirit communication and is a powerful dream stone.