Dims: 2.8x1.4x1.3: (7.1x3.6x3.2cm)
Wt: 2.24 oz. (63.3g)
Auglaize Quarry, Junction, Ohio, USA
A chunk of rock was cut and broken open to reveal two cavities. These are lined with fluorite crystals in three layers. The outer layer consists of pale brown crystals whose terminations are completely hidden by the upper layers. This layer fluoresces very bright yellow under long wave UV, and white under short-wave UV. The next layer is of small, transparent, brown fluorite cubes, which do a good job of blocking the UV from the underlying fluorite - the result is a bright "ring around the cavity". Finally, there is a number of excellent purple fluorite cubes, including one crystal measuring 7mm on the longest side. The purple on brown has a pleasing appearance, almost like an irridescence, as you examine the crystal.