What is a green onyx sculpture?

A green onyx sculpture is a decorative piece featuring a carved natural stone base paired with a cast metal figure. These works typically date from the late nineteenth century through the Art Deco period. The stone provides a heavy, polished plinth that supports subjects ranging from human dancers to animals and clock mechanisms.

How do I clean a green onyx sculpture?

Cleaning requires a soft, dry cloth to remove dust from both the polished stone and the metal surfaces. Moisture should be kept away from cold-painted metal and porous stone. Harsh chemical cleaners will damage the protective polish on the onyx and strip delicate paint finishes from the bronze or spelter figures.

Are these sculptures signed?

Many figurative pieces bear cast signatures or foundry marks belonging to the sculptor or maker on the metal base. Signatures are often found near the feet of the figure. Stones rarely feature signatures, as markings are generally confined to the cast metal components of the work.

What is the difference between bronze and spelter?

Bronze is a durable alloy of copper and tin that takes fine detail and patination well. Spelter is a softer zinc alloy used widely for affordable decorative figures. Spelter figures are lighter than bronze and require careful handling to prevent fractures at stress points.

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Green Onyx Sculpture

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A green onyx sculpture brings the rich mineral character of banded stone together with cast metal figures from the late nineteenth and early twentieth centuries.