A 2.2cm Titanite (Sphene) crystal standing on edge atop Calcite crystals that are in turn sprinkled with small green Tsavorite crystals. Titanite is uncommon at Merelani and this is a superb display example that would make a great addition to a Merelani suite. Undamaged and displays well from many angles.

A 1.4cm mirror-lustrous Pyrite crystal set in yellow Prehnite crystals. I don't recall ever seeing one like this (Pyrite in Prehnite). Neither mineral is rare at the Merelani Tanzanite mines, but I've never seen them together like this. A stunner.

Double-terminated bi-colored Tanzanite crystal, blue/purple with yellow tips on each end. Clean and undamaged.

Intergrown cluster of 4 red/pink Spinels. Spinel from Mahenge is world famous for incredible faceted gemstones and much of what is found is used for gems. This is good cluster of octahedral crystals with just a small amount of chipping. Largest crystal is 1.8cm.

A 1.2cm pink Spinel in Calcite. The Spinel has great color and transparent zones. There is a chip on one edge, otherwise undamaged.

Large, somewhat flat single Pyrite crystal with large, flat faces and incredible luster. The exotic crystal forms and high luster of Merelani Pyrite make it my favorite of any Pyrite found. This is a good example atop a small amount of Calcite and Graphite.

Single 'Cobalt Blue' Tanzanite crystal from a small recent find. Of all my many years of selling Tanzanite I have never seen this color, a deep almost silky blue that reminds me of Kashmir Sapphire, hard to capture on camera. Only about 50 crystals were found and none very large. Clean and undamaged.

Complete twinned single Sphalerite of high quality. Undamaged with just a bit of roughness at the base where it was attached to Graphite. Clean and undamaged. Translucent red when backlit. Uncommonly good Merelani Sphalerite.

Large, undamaged octahedral Alabandite crystal with a minor amount of attached Pyrite. Compound crystal with clean, smooth faces and some stepped and cavernous growth structures on the sides. This is a big crystal that not only has size but also fine quality. These are considered by many as the best of species and are certainly the largest ever found. A crystal like this would have sold in several thousands of dollars when they were first found. Prices have come down since the initial find, but this is still a great price for a crystal like this.

Large cluster of octahedral Alabandite crystals with a minor amount of attached Pyrite. Large and undamaged with interesting growth patterns. These are considered by many as the best of species and are certainly the largest ever found.

Large single octahedral Alabandite crystal with a minor amount of attached Diopside and Graphite on the backside. Large flat crystal faces make this an unusually clean looking crystal. These are considered by many as the best of species and are certainly the largest ever found.

Large single octahedral Alabandite crystal with a 2cm Tanzanite crystal attached on the base. Good quality undamaged crystal with a nice, flat cube modification on the tip. These are considered by many as the best of species and are certainly the largest ever found.

Large single octahedral Alabandite crystal with attached Calcite, Diopside, and Graphite. Good quality undamaged crystal with a nice, flat cube modification on the tip. These are considered by many as the best of species and are certainly the largest ever found.

Large single octahedral Alabandite crystal. Good quality undamaged crystal with a smooth crystal faces with about as good as luster as you get with these. These are considered by many as the best of species and are certainly the largest ever found.

Large single octahedral Alabandite crystal with attached Calcite. Good quality undamaged crystal with a smooth crystal faces with about as good as luster as you get with these. These are considered by many as the best of species and are certainly the largest ever found.

Sharp single Tanzanite crystal with excellent luster, good transparency. Purple/blue with a yellow zone at the top. Undamaged and complete all around.

Tall, slender single Tanzanite crystal with excellent luster, transparency. Purple/blue with a yellow zone at the top. It's undamaged (there is a small indentation on one side that looks like a spot where another former crystal grew rather than damage), complete all around, and has a small sphere of white Calcite attached near the base.

Glassy single Tsavorite with great transparency. This is a rare floater with all crystal faces present. But for the included Graphite, this would be a fully transparent facet-quality gem crystal. The crystal faces are glassy and smooth with just a few surface irregularities caused by the Graphite. Nice crystal!

Transparent, rootbeer-brown single Dravite crystal. Well terminated, complete all around, and undamaged.