- Location: The original manufacturing process was invented in 17th century Venice by the Miotti family.
- Colors: Most commonly reddish-brown, though there are blue and green variations.
- History/Lore: Urban legend says goldstone was an accidental discovery by unspecified Italian monks, or the product of alchemy.
- Hardness: 6.0 to 6.5
- Chemical Composition: Gold Stone is a type of glittering glass made in a low oxygen reducing atmosphere.