$55.00
PR813: South Dakota Chalcedony.
Locality: South Dakota.
Selection: Polished and rough specimen.
Appearance: A treasure found here in the Black Hills of South Dakota, a great piece of Chalcedony. It will fluoresce bright green under SW/UV light. This particular piece was cut and polished on the front face in our Lapidary Department.
Please Note: display photos are shot under various light settings.
Approximate measurements: LxWxH – 4 1/8″ x 2 7/8″ x 3 1/2″.
Availability: single specimen, exclusive.
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.
| Weight | 1.780 lbs |
|---|---|
| Dimensions | 4.125 × 2.875 × 6.5 in |
