Slag (Black/Dark Amethyst/Blue)
Christensen Agate Company · Late 1920s to Early 1930s

Identification summary
An early American machine-made slag or swirl marble with a rich dark amethyst or black base swirled with smoky blue and gray ribboning.
Visible record
- Maker candidate
- Christensen Agate Company
- Era
- Late 1920s to Early 1930s
- Pattern
- Swirl
- Rarity assessment
- Rare
- Condition assessment
- Near Mint
- Size
- Shooter (approx. 1 inch / 25 mm)
- Material
- Glass