Fluorite with Muscovite, Bertrandite (ex Nelson Coll.)
A beautiful specimen consisting of very gemmy (the matrix can be seen under the crystals) and lustrous blue cubes of fluorite with a deep purple color zone on the edges. These sit on a matrix of muscovite and tiny clear crystals of bertrandite. There is contact on the rear of both larger groups of fluorites, but it is on the rear of the crystals and it does not affect display. A stunning piece!