How do I clean green marble urns?

Dust the stone and metal mounts gently with a soft, dry cloth. Avoid water, alcohol, and modern chemical cleaners, as these substances can strip the historic polish from the marble and damage the gilt surfaces. For stubborn dust in crevices, use a soft natural-bristle brush. Take care around the junction of stone and metal to prevent moisture from settling in the seams.

Were these urns originally made as lamps?

Many nineteenth-century pieces served purely as decorative ornaments, garniture sets, or cassolettes. Wiring was frequently added later in the twentieth century to convert them into table lamps without harming the original stone. When inspecting a wired piece, look for discreet cord placement that preserves the integrity of the base and mounts. The core structure often retains its original function beneath the electrical fittings.

What is the difference between marble and alabaster?

Marble is a hard, metamorphic rock that takes a high, durable polish and displays complex veining. Alabaster is a softer, gypsum-based stone with a translucent quality that allows light to pass through the material. While both appear in classical vases and lamp bases, alabaster responds more readily to carving and is more sensitive to moisture. Green marble is chosen primarily for its deep colour and weight.

How can I tell the period of these pieces?

Dating relies on the style of the metal mounts, the turning technique of the stone, and the overall aesthetic movement. Nineteenth-century pieces often reflect French Louis XVI Revival or Grand Tour influences with hand-chased ormolu. Examine the construction of the interior threads, screws, and mounting pins. Older pieces use hand-cut elements and heavy cast bronze rather than modern lightweight alloys.