Though still beautiful, specimens with color banding are less valuable. Photo by Hienpq. Public domain.
Opaque Orange Calcareous Concretions Rough
Though still beautiful, melo pearls with color banding, like this specimen, are less valuable. Photo by Hienpq. Public Domain.
Article: Melo Pearl Buying Guide
Credit: Hienpq
| Gemstone | Calcareous Concretions |
| Natural or man made | Natural |
| Gem State | Rough |
| Color | Orange |
| Transparency | Opaque |