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....
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...
Large spay of compact sorensenite crystals. Sorensenite is known to fluoresce white/grey under...
Apophyllite on matrix, possibly two generations: a larger triangular crystal (cleaved or broken)...
Very nice sample of hokkaidoide grains embedded in opal. Under longwave UV light the hokkaidoide...
Halite & Gypsum var selenite. Nice association, in particular under UV light: the halite...