Large grey Galena cubes to 5.5cm on the diagonal associated with larger dark red Sphalerite crystals and small, bright red 'Ruby Jack' Sphalerite crystals. Recently purchased out of an old collection, these are no longer common.

Transparent Quartz scepter with Amethyst and smokey coloration. Complete all around and undamaged.

A fine example of the rare sulfosalt species, Franckeite, covered with crystals of what was formerly known as Potosiite (now discredited). Potosiite is the variety of Franckeite that is tin-poor in its chemistry with crystals more tabular in shape. There are large, flat individual crystals on this specimen to 6 x 6mm. A rare specimen.

Floater specimen of golden star-shaped Muscovite with bladed white Feldspar hosting a transparent blue Tourmaline crystal. This specimen is neat enough just with the star mica crystals sticking out in all directions all around, but the 1.2cm blue Tourmaline makes it extra special. This must have formed in the center of a pegmatite pocket, not attached to any pocket walls. Out of an old collection. The Tourmaline has an irregular but undamaged termination.

Double-terminated Calcite crystals heavily included by sand. A very clean example from this famous loacality. This is a specimen I've owned since I was about 10 years old.

Wonderful and uncommon Merelani combo specimen with a 1.1cm double-terminated Quartz crystal, a 1cm Pyrite crystal, and small Tsavorite and Diopside crystals on a matrix of solid Graphite. Quartz crystals on Graphite are uncommon.

Deep green Tsavorite crystal on Graphite. I priced this low due to a one chip on the Tsavorite, but it's not that noticable and the Tsavorite ahs great color, is gemmy, and good sized at 1.1cm.

Bright, shiny Pyrite crystals with lustrous Tsavorite crystals on a matrix of solid Graphite.

Green Tsavorite crystals to 1cm with white, bladed Calcite crystals on a matrix of solid Graphite.

Elongated Tsavorite crystals included within a Quartz crystal. Polished on one side.

Large, blocky crystals of bright lemon yellow Prehnite. Recent finds at Merelani have produced the best Prehnites found to date at the mines. With a small amount of attached Graphite on the back.

Large, blocky crystals of yellow to greenish yellow Prehnite. Very clean - I found a small amount of chipping at the tip of one crystal, otherwise perfect and undamaged and very aesthetic cluster, complete all around. Well defined, distinct crystals. Recent finds at Merelani have produced the best Prehnites found to date at the mines. With a small amount of attached Graphite on the bottom.

Large, blocky crystals of bright lemon yellow Prehnite. Clean and undamaged and highly translucent. Recent finds at Merelani have produced the best Prehnites found to date at the mines. With a small amount of attached and included Graphite on the back.

Large, blocky crystals of bright lemon yellow Prehnite. Clean and undamaged and highly translucent. Recent finds at Merelani have produced the best Prehnites found to date at the mines. With a small amount of attached Graphite on the back.

Floater specimen of golden star-shaped Muscovite with bladed white Feldspar hosting a transparent blue Tourmaline crystal.
This specimen is neat enough just with the star mica crystals sticking out in all directions all around, but the 1.2cm blue
Tourmaline makes it extra special. This must have formed in the center of a pegmatite pocket, not attached to any pocket walls.
Out of an old collection. The Tourmaline has an irregular termination (likely a piece that broke off the wall during growth
and partially regrew with the Mica).