al·a·bas·ter 
(ălə-băs′tər)
(ălə-băs′tər)n.
1. A dense, translucent, white or tinted fine-grained gypsum.
2. A variety of hard calcite, translucent and sometimes banded.
3. A pale yellowish pink to yellowish gray.
[Middle English alabastre, from Old French, from Latin alabaster, from Greek alabastros, alabastos, possibly of Egyptian origin.]