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PR105 South Dakota Chalcedony

PR105 South Dakota Chalcedony


Here’s a cool item, a polished piece of South Dakota Chalcedony. This cool specimen has good color, a nice design, will fluoresce a brilliant green color under a SW/LW light and a nicely polished face with balance left natural.  It measures 9 1/2” x 3 3/8” x 3 1/8″ thick.  The specimen was handcrafted in our very own lapidary department.  Definitely a one-of-a-kind treasure or makes a great gift!

In stock


Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of the minerals quartz and moganite. It has a waxy luster, and may be semitransparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black.

Additional information

Weight 4.00 lbs
Dimensions 9.5 × 3.375 × 3.125 in

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