This mine has produced what are clearly some of the finest quality Vivianite specimens ever seen. This miniature size piece features absolutely beautiful, superb quality, HIGHLY lustrous, gemmy emerald green; sword shaped "textbook" crystals of Vivianite with minor metamorphosed Sandstone. These are some of the best quality Vivianite crystals you will see from any locality, hands down. This piece is virtually undamaged and is one of the gemmiest I've seen from the find. I have never seen specimens of this quality, color, luster and gemminess before, not only from Bolivia, but virtually any world locality.