Slocum stone: blocks ~ 1/2 inch square. Photo © Joel E. Arem, PhD, FGA. Used with permission.
Lab-Created Opaque Red Play-of-Color Artisanal Glass Other
Slocum stone: blocks ~ 1/2 inch square. Photo © Joel E. Arem, PhD, FGA. Used with permission.
Article: Glass Value, Price, and Jewelry Information
Credit: Joel E
| Gemstone | Artisanal Glass |
| Natural or man made | Lab-made |
| Gem State | Other |
| Color | Red, Green, Blue |
| Transparency | Opaque |
| Photo phenomena | Play of Color |