Single octahedral crystal of cobalt blue Spinel. A chip on one tip, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.

Single octahedral crystal of cobalt blue Spinel. A chip on one tip, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.

Single octahedral crystal of cobalt blue Spinel. Chipping 3 tips, otherwise a perfect octahedron with slight edge wear. Translucent to transparent crystal.

Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color. Good large crystals with attached Graphite, complete all around with only a couple minor chips. These recent Prehnites are the best ever found at the locality.

Orange Wulfenite crystals to 7mm on Hemimorphite. There is also green acicular Aurichalcite present adding color. Undamaged.

A classic cabinet size Michigan Copper specimen with minor Quartz and a few patches of bright native Silver. There is also a cavity with larger crystals that have a red patina. Weight is 1lb, 9.6oz, or 727 grams.

A very sculptural specimen with cubic, lavender color, Fluorite crystals 'capped' by small white color Dolomite crystals that are dusted with microscopic Pyrite. An outstanding classic English Fluorite specimen with an old Al McGuinness label circa 1970's. The bottom of the matrix has a trim-cut for the best presentation angle. Most importantly, there is NO Damage to the Fluorite crystals, and they are razor sharp!