$60.00
M817: South Dakota Chalcedony & Calcite “Watermelon Chalcedony”.
Locality: South Dakota.
Selection: Rough specimen.
Appearance: A treasure found here in the Black Hills of South Dakota. It will fluoresce bright green color and red Chalcedony (green), Calcite (red). UV fluorescent (shot with uvBeast 365nm(nanometer) Black Light UV flashlight).
Please Note: display photos are shot under various light settings.
Approximate measurements: LxWxH – 9 7/8″ x 6 1/8″ x 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 | 3.950 lbs |
|---|---|
| Dimensions | 9.875 × 6.125 × 2 in |
