Scallop pearl ring. Photo by Nicole Bratt. Licensed under CC By-SA 2.0.
Opaque White Calcareous Concretions Cabochon in Ring
Scallop pearl ring. Photo by Nicole Bratt. Licensed under CC By-SA 2.0.
Article: Calcareous Concretions Value, Price, and Jewelry Information
Credit: Nicole Bratt
| Gemstone | Calcareous Concretions |
| Natural or man made | Natural |
| Jewelry type | Ring |
| Gem State | Cabochon |
| Color | White |
| Transparency | Opaque |