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This superb specimen of red-orange wulfenite comes from the 2015 find at the Jianshan Mine in China...
This datolite specimen is a lustrous, well-crystallized example of the colorful blue-green datolite ..
The colors inside this crystal are vivid purple and bright golden yellow, a rare combination of amet..
The two elbaite, var. rubellite tourmaline crystals on this piece are botryoidal with a trigonal out..
Red beryl, also known as bixbite, forms in lovely crystals in a lush, saturated ruby violet color th..
The 2012 Pocket at the Linwood Mine in Iowa was an overnight success, as collectors rushed to buy th..
This vanadanite crystal is an attractive old-time piece from Mibladen, Morocco. It features a satura..
Here is a large, gemmy, clear, cleaved rhombohedron of Iceland spar (calcite) from Mexico. It ..
The edges of the hoppered crystals on this lab-grown bismuth specimen are fully developed, but the i..
This excellent and colorful specimen of rhodonite from Peru displays a wonderful assemblage of extra..
This amazing crystal cleavage of halite (more commonly called salt) features vivid, saturated royal ..
Here is a very fine example of one of the rarest form of quartz: a lightning struck crystal. T..
Here's an outstanding and highly aesthetic, gemmy, transparent citrine quartz cathedral crystal, col..
This large specimen of talc is a lovely shade of pastel mint green, and is composed entirely of foli..
A friend of mine lives on Hell Hill in southern New Hampshire, where he collected this specimen of s..
Here is an aesthetic specimen of green quartz (called prase) from the old classic locality on Serifo..
This well-formed and colorful specimen is richly covered with crystals of yellow wulfenite on black ..
Watermelon tourmaline is a rare variety that displays two different colors in the same crystal - gre..
This is a superb, undamaged, large cabinet specimen of cobaltoan calcite. It is completely covered w..
The blueberry-like concretions on this specimen are a rich, royal blue color that is really appealin..
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