Nice and colorful “fantasy rock” from the Taseq slope in Greenland. We have chkalovite “eyes”...
Fluorapatite crystals in magnetite. The fluorapatite crystals are elongated and all aligned in the...
Fluorapatite crystals in magnetite. The fluorapatite crystals are elongated and all aligned in the...
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...
Elongated zircon crystals in a pegmatite matrix containing albite, wollastonite, green diopside...