Glassy and lustrous gem blue/yellow Tanzanite crystal, even more glassy and transparent in person. Complete high quality crystal. Natural, unheated gem Tanzanite crystal with unusual coloration.

Rare double Tanzanite with two crystals attached to each other at the sides, both very gemmy with excellent color saturation. No damage, uncommon.

Glassy and lustrous gem Tanzanite crystal with purple blue color. Overall excellent quality and good sized. Natural, unheated gem Tanzanite crystal. 50 carats in weight, 3.5 x 2.7 x 0.9 cm.

Fine gem Tanzanite crystal with good transparency from top to bottom. Complete all around and undamaged, 2.2 x 1 x 0.8 cm.

Good sized gem Tanzanite crystal with good transparency. Complete all around, fine gem crystal, 3.5 x 1.8 x 1.8 cm.

Curved yellow to yellow/green Pyromorphite crystal cluster set on a flat matrix. Complete all around and undamaged. This composition of a stand alone cluster complete all round is unusual when compared to most which are solid masses or drusy matrix coverings of crystals. Excellent piece that comes with an old Kristalle label.

Large red Inesite crystal spray with other areas of Inesite, good clusters of Hubeite (brown), Quartz crystals, and tiny drusy Apophyllite, size 9.5 x 8 x 4 cm.

Classic Cinnabar penetration twin rising up 1.7cm and 1.5 cm wide on Dolomite. Fine quality Cinnabar that glows red when backlit. Fine undamaged piece, Chinese Cinnabar is by far the world's best, get a good one while supplies are still plentiful. Although there is plenty of lower quality material available now, the better ones are few and far between, size 9 x 8 x 4 cm.

Etched floater Jeremejevite crystal with good blue color and plenty of gem zones. A thick crystal that has most of the original, flat prism faces still intact with more etching present at the ends. Good sized, high quality crystal that weighs 14 carats. No damage.

Single red crystal of 'Ruby Silver' from the most important mine for this species in the world. Bright and translucent red when backlit.  A complete,terminated single crystal of one of the 'Holy Grail' species for mineral collectors rarely seen for sale. 

Large single crystal from a find in spring 2010. Large size for the species, with both good length and perhaps more significantly, exceptional thickness. The crystal is naturally etched however retains a good glassy luster and has lots of internal transparency.

Killer Tanzanite thumbnail that's also a great association piece too.  Fine, gemmy blue Tanzanite crystal with excellent luster and great transparency with attached large, single Prehnite crystals (analyzed) on the backside. Prehnite from Merelani is usually seen as rounded aggregates, yet on this specimen they occur as individual crystals to 7mm wide. In addition to the Prehnite, there are white crystals of an unidentified mineral also attached to the backside. A very nice Tanzanite, undamaged with TOP luster, good color and highly gemmy.