Fluorite -Classic New York cube
Penfiled Quarry, Penfield, Monroe County
3.2 x 2.2 x 3 CM (small miniature/ large thumbnail (toenail))
Sharp purple-blue cube of Penfield NY. Fluorite, with both glass clear and lightly frosted faces. A much sought after locality, these few Fluorites are highly prized. Totally transparent and in far above typical condition, this had been in the Francesco Spertini collection since the sixties. With magnification some interesting growth structures can be seen on faces and inside the cube. The display side is clean and damage free but the underside has a cleave and matrix contact. That underside can be seen through the clear crystal but is easily hidden as it is the obvious base or bottom of the crystal. A good value, these are typical very costly when available.