$25.00
PR105: South Dakota Chalcedony. – Locality: Black Hills, South Dakota Selection: Polished front face rest natural state.
Appearance: It will fluoresce a brilliant green color under a SW/LW light. Cut and polished in our Lapidary department.
Approximate measurements: LxWxH – 4 3/4″ x 1 1/2″ x 2 3/4″.
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 | 1.5 lbs |
|---|---|
| Dimensions | 4.75 × 1.5 × 2.75 in |
