A big chunk of calcite, with some interesting colors under midwave UV light: form yellow to orange...
A nice specimen of agrellite and baratovite from the second best agrellite locality: the...
A soup of Franklin minerals. Mostly nasonite and prehnite, I think mixed together, fluorescent...
A fragment of a roeblingite nodule, showing its characteristic porcelaneous, or coconut-like,...
A “Parker Shaft Soup” mix of minerals — without the rare ones. Mostly present in this sample are...
A nice example of “Parker Shaft Soup” mix of minerals. The two most obvious minerals are...
Large matrix piece of carphatite in quartz. The long acicular carpathite crystals are protected...
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...