Tiffany Stone, Brush Wellman Mine, Delta, Utah
Tiffany stone is a complex rock composed of opalized fluorite with bands and veins of chalcedony, manganese oxide and bertrandite. The...
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Fluorescent Minerals from SouthWest USA (except AZ)
Yttrofluorite, Joseph Mine, Rio Arriba County, New Mexico
Yttrofluorite is a variety of fluorite in which the rare earth element yttrium substitutes for some of the calcium in the fluorite (CaF2)...
Yttrofluorite, Joseph Mine, Rio Arriba County, New Mexico
Yttrofluorite is a variety of fluorite in which the rare earth element yttrium substitutes for some of the calcium in the fluorite...
Hydrozincite, Sphalerite from Green Monster Mine, Nevada
One of the many specimens collected in the Green Monster Mine, Sandy Valley, Nevada, in early January 2022. The blue-white fluorescent is...
Green Fluorescent Fluorite, Fourmile Creek, Colorado
Rare green fluorescent botryoidal fluorite from the Fourmile Creek area, near Canon City, Fremont County, Colorado. Fluorite in...
Scheelite, Ophir Hill Mine, Tooele County, Utah
Brightly fluorescent, submillimeter, octahedral crystals of scheelite on matrix; from the Ophir Hill Mine, Tooele, Utah. This specimen...
Fluorite and Cerussite from the Blanchard Mine, Bingham, NM
Fluorite cubes (fluorescent blue) and powdery cerussite (fluorescent yellow) from the Blanchard Mine, Bingham, NM, USA. The overall size...
Sphalerite and Fluorite Make for a Beautiful 2-Color Rock from the Sweet Home Mine, Alma, Colorado
To mineral collectors, the Sweet Home Mine in Alma, Colorado is best known as a producer of some of the finest rhodochrosite specimens in...
Willemite and Sphalerite, Miller Canyon, Arizona
This lovely 2-color fluorescent specimen contains willemite and sphalerite, and is from the Nelly James Mine (also known as Miller...
Calcite, Willemite and Hydrozincite, Miller Canyon, Arizona
This beautiful 4-color rock is from the Nelly James Mine (also known as Miller Canyon), in southern Arizona. At its best under short...
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