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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..
Transparent gemmy crystals of sky blue barite from a clsoed locality in Morocco are one of exciting ..
Almandine is the most popular and collectible member of the garnet family, and this one is a beauty!..
This is a colorful, eye-catching specimen of ultramarine blue azurite from the D.R.Congo, crystalliz..
This is an intriguing variation on the lavender grape agate specimens that have been on the market s..
Anthophyllite is a rare member of the asbestos family, an amphibole mineral. In this specimen, it oc..
Here is a pyromorphite specimen that was collected by mine owner Bob Hopper in the late 1980s. It fe..
This is a fascinating specimen of the rare mineral fulgurite, the term used for the mineral lechatel..
Here is an eye-catching specimen of thin, bladed, light orange and clear selenite crystals, with san..
Here is a very beautiful, sharply crystallized cluster of half a dozen fluorapatite crystals in a lo..
Mohawkite is only found in two places in Keweenaw County, Michigan, and this nugget comes from the M..
This is a hollow tube of fulgurite, the name for the naturally formed tubes that are created when li..
This specimen of red-violet fluorite comes from the Minerva Mine in Southern Illinois, which has bee..
The rare lithium-rich pegmatite mineral petalite seldom occurs in fine, lustrous crystals like this ..
This crystal is a lovely clear, gemmy specimen of the lithium mineral petalite. This piece is a rare..
This is a superior kyanite crystal in a very rare red-orange color. It comes from the 2007 find on S..
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