A "rischorrite" rock with some interesting fluorescent minerals. In what I call the front, there...
A common mix of calcite, sphalerite, and willemite from the Sterling Mine, but with an unusual...
A rare piece of solid zektzerite (after sogdianite, according to the label) with a little...
One of the best four-colors fluorescent combination from the Dara-i-Pioz Massif in Tajikistan....
Clear gypsum crystals, usually referred to as selenite, resting on crystalline halite matrix. Both...
Calcite and chalcedony, fluorescent red and green under UV light, respectively. The calcite is...
An aggregate of small witherite crystals. Fluorescent bluish white, greenish, and white under...
A little specimen of turneaureite, a rare apatite group mineral, associated with calcite. They...
An interesting example of cuspidine and hardystonite, together with a touch of calcite and the...
A nice display of cuspidine on a matrix of calcite, willemite, and black franklinite. Under...