Olmiite is an ULTRA-RARE manganese-dominant variant of poldervaartite and is found ONLY at the famous N'Chwaning II Mine. This SUPER showy plate is aesthetically covered with ball-like clusters of lustrous, tan, sharply crystallized, orthorhombic olmiite crystals on a complimentary manganese oxide matrix. The scattering of water-clear celestine crystals and needles is a beautiful accent and the see-through, celestine-lined fracture is a very neat feature. SELDOM will you see an olmiite specimen as rich and as aesthetic as this. Olmiite was not named until 2007! Ex. Charlie Key.