Black Neptunite crystals on white Natrolite over schist matrix. The Neptunite are all well terminated quality crystals and well separated on matrix. Because of the Benitoite found at this locality, people often overlook the fact that the Neptunite found here is also the world's best for species. Ex. Len Pisciotta collection. Len has bought and sold a large number of specimens from this mine. The fact that he kept this one in his collection speaks to it's quality.