Fluorite - classic British, with Sphalerite and Ankerite (Ref: 15.1-538)

Fine old British Fluorite from the Alston Moor area (Brownley Hill Mine). This is both very esthetic in person and unusual for a British Fluorite. The cubes show both zoning and some color difference on different faces. There are some faces that are cloudy and others that are transparent with glassy luster. The interiors seen though the transparent faces show a good yellow-green hue that glows well if backlit. Exceptional condition with very sharp edges and corners, no noticeable damage and well-composed form. There are some small areas of Sphalerite on the underside and Siderite or Ankerite (this mine has both specie and they look similar) on a few crystal faces. We see very few specimens from this early British mine and fewer still are in such fine shape. Several good display angles on this piece, it is a pre 1960 vintage but likely far older. Looks even better in person.