Alabaster is a natural mineral similar in appearance to marble. White varieties are often used to make lamps and lighting because of their translucent properties. When dirt and dust build up on your alabaster lamps, clean them carefully so you don’t damage to the surface. Most chemicals can etch or wear down alabaster because it's a soft mineral. Use plain water to restore the smooth, lustrous appearance of your alabaster lamps.
Turn off and unplug the lamp.
Dampen a soft cloth with water and wring it out.
Wipe the alabaster lamp gently with the cloth to remove any residue or dirt. Rinse the cloth as needed.
Dry the alabaster with a clean, dry cloth.