Alabaster lighting guide
Alabaster vs Marble vs Onyx vs Travertine: Which Stone Is Best for Lighting?
Alabaster is the softest and most translucent of the four, so it glows evenly when lit. Marble is denser and mostly opaque, onyx is translucent with bolder banding, and travertine is warm, porous and usually opaque. Choose alabaster when you want the stone itself to act as the lampshade.
How do the four stones differ?
Hardness figures are approximate Mohs values.
- Alabaster: a fine-grained, very soft stone, most often gypsum (about 2). Thin slices are translucent, with soft clouded veining. Some stone sold as alabaster is actually calcite, so ask your supplier which mineral is used.
- Marble: crystalline calcite or dolomite (about 3–4). Dense and heavy. Light passes only through very thin slices, so marble is usually used for bases and bodies.
- Onyx: banded calcite, often sold as onyx marble (about 3–4). Translucent with strong, dramatic banding.
- Travertine: sedimentary limestone with natural voids (about 3–4). Warm, earthy and opaque, so it is used for lamp bodies and bases, not diffusers.
Which stone glows best?
When the stone is the diffuser, alabaster and onyx are the two to consider. Alabaster gives a softer, more even glow with gentle clouding. Onyx gives a stronger banded pattern. Marble and travertine do not transmit enough light in the thicknesses used for lamp bodies, so they work as sculptural bases with a separate shade.
How do they compare on weight and installation?
Alabaster discs, globes and thin columns stay light for their size. The Marmo wall light, for instance, combines a cut stone disc with a metal frame and is light enough for standard wall fixing into masonry or plasterboard with suitable plugs or anchors. Solid marble or travertine bases are much heavier, which matters for wall fixings and shipping.
Which is easiest to look after?
None of them is maintenance-free.
- Alabaster: softer and porous. Dust with a dry microfibre cloth, use a barely damp cloth with distilled water for marks, and avoid soaking, sprays and chemical cleaners. Keep it indoors.
- Marble and onyx: harder, but acids such as lemon juice or vinegar-based cleaners can etch the surface.
- Travertine: porous with open voids, so it can stain if it is not sealed.
How do they look in a room?
- Alabaster with brass or gold gives a soft, quiet-luxury look. See Alabaster and Brass.
- Marble suits formal, graphic table lamp bases.
- Onyx works as a statement piece in a single focal position.
- Travertine suits relaxed, earthy, Mediterranean-style schemes.
Which should you choose?
- You want the stone to glow: alabaster or onyx.
- You want a heavy sculptural base: marble or travertine.
- You want the softest, most even diffusion: alabaster.
- You want to avoid acid etching: avoid cleaners that are not pH-neutral and keep all natural stone away from harsh products.
To check what you are buying, read Natural Alabaster vs Alabaster Glass Lighting.
Frequently asked questions
Is alabaster the same as marble?
No. Alabaster is a softer stone, usually gypsum, and is far more translucent. Marble is denser and mostly opaque at lamp thicknesses.
Is alabaster more fragile than marble?
Yes. It is softer, so it scratches and chips more easily. Handle it with care and keep it indoors.
Which stone gives the warmest glow?
Alabaster paired with a 2700–3000K warm-white LED gives a very warm, even glow.
Can stone lamps be used outdoors?
Alabaster fittings are for dry indoor use. Check the IP rating on any fitting before using it outside.
Related reading
Keep planning
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