Alley Agate Selenium Ghost Swirl
Alley Agate Company · St. Marys Period (1932-1949)

Identification summary
This marble is a classic example of Alley Agate's production from their St. Marys, West Virginia facility. It features a characteristic 'Ghost' base—a translucent glass that is not quite clear but not opaque. The combination of blue and Selenium-based red swirls is a highly collectible color scheme, particularly due to the UV reactivity of the red glass.
Visible record
- Maker candidate
- Alley Agate Company
- Era
- St. Marys Period (1932-1949)
- Pattern
- Swirl
- Rarity assessment
- Uncommon
- Condition assessment
- Near Mint
- Size
- Player (15mm / 0.59 inches)
- Material
- Glass