Genuine natural Onyx is a "gemstone" found in various regions of the world .
It is formed of bands of chalcedony in alternating colors.
It is cryptocrystalline, consisting of fine intergrowths of the silica minerals quartz and moganite.
Its bands are parallel to one another, as opposed to the more chaotic banding that often occurs in agates.
Dimensions: 22ʺ W × 22ʺ D × 18ʺ H
Period: Mid 20th Century
Country of Origin: Italy
Materials: Onyx Gemstone
Shape: Square
Condition: New, Excellent Condition, Onyx is a natural quarried product.
Photo's shown are comparable and consistent with this organic material.