This sphere is carved from violet agate, a variety of chalcedony quartz known for its banded patterns and rich purple hues. Agate forms when silica-rich fluids fill cavities in volcanic rocks, creating concentric layers over time that result in unique color banding in each piece.
Details:
- Mineral: Violet agate (a variety of chalcedony, SiO₂)
- Size: Approximately 3 inches in diameter
- Appearance: Polished sphere with shades of purple, often showing banded or layered patterns
- Formation: Forms in cavities within volcanic rocks as layers of silica are deposited over time, producing natural bands
- Physical Properties: Mohs hardness 6.5–7; vitreous luster; durable polished surface
- Educational Value: Demonstrates mineral deposition, chalcedony banding patterns, and the formation of silica-rich layers in volcanic environments
This violet agate sphere combines natural beauty with geological significance, making it both an attractive decorative piece and an educational specimen.
