Exquisite gem crystal. Undamaged with great luster and transparency. This is a really fine crystal and well priced for the degree of quality, even has a phantom. Natural, unheated gem crystal.

Exquisite gem crystal, undamaged and unheated with great luster and transparency. Superb quality here, and a real winner of a specimen. 55 carats of nearly 100% facet grade Tanzanite. Great crystal.

Gemmy purple crystal, undamaged except along the bottom where it was attached to the matrix. Good color and uncommonly good in terms of lack of damage.

Tanzanite crystal cluster with a 5cm tall central crystal and 4cm tall crystal attached to the back and smaller crystals at the base. Natural, unheated, and undamaged. The white spot seen on the face of the main crystal is a crystal of Prehnite and is not damage.

Sharply formed crystal with good luster and highly transparent. With attached Graphite on backside. More transparent than typical Diopsides from here.

Tanzanite crystals on Diopside. The two main crystals are crossing and largest is double-terminated. There are also many other small terminated Tanzanites present. Good thumbnail.

This is a rare nearly perfect and complete Tsavorite crystal. Tsavorite typically form on graphite and almost always have a contact on the bottom where they were attached to the Graphite. This one grew atop the thin edges of Graphite crystals. Although there are some dark colored grooves on the bottom surface caused by the Graphite crystals, it is fully crystallized all around. Under a loupe I found a couple tiny nicks on the bottom, otherwise it is undamaged and of exceptional quality, and it has great color.

Fine quality Tanzanite crystal that is complete all around with good gem zones. Trichroic with blue and purple coloration from the sides and a good red color up the C-axis. Natural, unheated, and with hardly any damage (just a couple very tiny edge nicks). A good value for the price. I backlit one photo for fun.

Translucent yellow Prehnite sprinkled with small brown crystals of Chabazite. This is the finest quality yellow Prehnite specimen I've seen from Merelani. A bit of Tanzanite attached to the bottom too.

Single Tanzanite crystal with a good, uniform shape. Trichroic with blue and purple coloration from the sides and a good red color up the C-axis. Natural, unheated, and undamaged.

Single Tanzanite crystal with a good color and gemminess. Trichroic with blue and purple coloration from the sides and a light red color up the C-axis. Natural, unheated gem crystal.