Materials & Techniques
Alabaster refers to a fine-grained marblelike variety of gypsum that is easy to carve but is rather fragile; it has been used as a sculpture material, in ornamental building work, for vases and small decorative carvings, and also powdered for use as a paper filler and paint pigment called mineral white or terra alba. Alabaster is usually a translucent white or pink but may also be a muted red, yellow, or gray. It is soft and can be scratched slightly with a fingernail, and also dissolves slowly in wet environments.
Getty Vocabulary, AAT (alabaster (mineral): AAT: 300011101).