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The apple green pyromorphite crystals on this specimen stand out in high contrast against the dark b..
Spanish pyrite from a mine in the tiny town of Navajun is world famous for its sharp, nearly perfect..
Here is a lovely specimen of splash copper, which is formed by pouring molten copper onto a smooth s..
There are three white andalusite flowers in this specimen of chrysanthemum stone from China's Hunan ..
In 2013, a well was being dug at Rahuri when a large pocket was encountered. Like two previous wells..
Glassy and gemmy, this pair of fluorapatite crystals has a lovely yellow coloration, with a hint of ..
Hold this specimen in the sun or a bright light and you will not believe the dazzling display of twi..
Topazolite is the varietal name for olive green andradite garnet, and this specimen is a beauty. The..
This drippy piece of copper is highly aesthetic and visually amazing. The color is a brilliant orang..
Here is an attractive specimen of pink calcite from China, featuring wedge shaped crystals to almost..
This polished gem calcite rhombohedron is water-clear, making it easy to see it perform the tr..
Natural copper nuggets of this large size are occasionally found in the copper veins in Michigan. Th..
Here is a beautiful geode specimen of chalcedony, which is fossilized after coral. The chalcedony ha..
Here is a cobaltoan calcite specimen in an intensely colorful, raspberry sherbet pink that is super ..
Naturally occurring chalcanthite like this specimen from the Planet Mine is in high demand, primaril..
This is a fine specimen of wulfenite which has crystallized in the rare bipyramidal crystal habit. T..
This brucite comes from the recent finds in 2017 in Pakistan, which has produced specimens that are ..
This gorgeous alum crystal group is an attention grabbing emerald green color. The crystals are octa..
Chrysoprase is an apple green, cryptocrystalline variety of a silica (quartz) that is used as a gem ..
Here is a chunk of light tan rhyolite which hosts a large 9 mm bixbyite crystal. The crystal i..
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