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This is a sharp danburite crystal from the world-famous Aurora Mine in Mexico. The crystal transitio..
This is a fine crystal of the rare gemstone tsavorite garnet. The color is a light grass green, and ..
Copal amber stalactites like this one from Madagascar are a delight, especially to fossil lovers. Th..
Enhydro crystals have always fascinated me, because I know they have water inclusions which are hund..
Here is a specimen featuring terminated anhydrite crystals that are grouped into a cluster which is ..
The glowing green color of this 15.7ct pair of twinned peridot crystals is lovely, and the crystals ..
This is a fine specimen of obsidian from California, featuring very shiny midnight black volcanic gl..
The dark blue color of this azurite specimen is typical of the world-class azurite specimens that ca..
Isn't it amazing that this pyrite specimen is 100% natural, not man-made? This group of 3 cube..
Here is a lovely, lustrous uncut dodecahedral (12 sided) golden yellow diamond crystal from the Kasa..
Here is a colorful specimen of rhodonite from Peru that displays an assemblage of sharp sprays of bl..
The azurite crystals on this specimen are up to .9", and are sharp and shiny, with smooth planer fac..
This is a terrific thumbnail specimen of the rare mineral babingtonite, perched on a green prehnite ..
These twinned Herkimer diamond quartz crystals are sharp and gemmy, and the larger one is jam-packed..
Here is a superb specimen of green quartz (called prase) from the old classic locality (now closed) ..
There are 2 good-sized danburite crystals in this twinned pair, and they are both a very pale pink c..
This display-worthy tsavorite crystal from Tanzania is well formed, very shiny, and mainly opaque, w..
The rich, saturated, crimson red color of this fine lab-grown arkanite is exquisitely rich and highl..
This is a fine matrix pyrite specimen that features 2 penetrating twin pyrite cubes in a 2.4" chunk ..
From the celebrated Glory Hole find of blue fluorite in Bingham, NM here is a specimen featuring sha..
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