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Here is a fine piece of sharp, brightly shiny obsidian from California, featuring very lustrous, mid..
When malachite stalactites are mined in the Congo, they are sometimes cut into thin semi-precious sl..
Here is a superb, highly sculptural cluster of Herkimer Diamonds fromthe HIckory Hill Diggings Mine ..
This intriguing specimen features a large pyrite cube perched on a chunk of marl matrix. The cubic p..
When mottramite was found at the Ojuela Mine in 2011, it took the mineral world by storm. Nothing as..
This is a large specimen of tsavorite garnet, featuring a rich, grass-like green color and shiny lus..
This is a genuine, 100% natural, uncut diamond crystal, crystallized as a rough dodecahedron, and co..
This is a fine and good-sized terminated crystal of yellow-golden barite from Cote d'About in France..
Here is a specimen of pink opal that comes from the Acari copper mining near Nazca. Pink Andean opal..
This is a polished slice of petrified wood that is amazingly well preserved. The highly detailed tre..
Here is a matrix specimen with gem clear golden apatite crystals set in quartz and hematite. T..
Here is a choicem rainbow-filled Herkimer diamond quartz crystal from Hickory Hill in New York. The ..
The unusual name "Heart of the Universe" has been given to the amazing rose quartz crystals from thi..
Here is a specimen of magnetite crystals in matrix that is very striking, due to the size and sharpn..
This gem clear single Herkimer diamond quartz crystal is sharp and well formed all around. It is ter..
Up until mottramite was found at Mapimi in 2011, none had been found for over 20 years, since Tsumeb..
Here is a grouping of 2 amazingly bright, extraordinarily sharp interlocking pyrite cubes that creat..
The large crystal on this specimen of magnetite from Australia is 1" across. It comes from a localit..
Here is a deep golden yellow barite crystal featuring parts of the interior that are transparent and..
The diggings at Hickory Hill produce some of the clearest, most gem-perfect Herkimer diamonds around..
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