n. 雪花石膏

a. 雪花石膏制的

[化] 雪花石膏

[医] 雪花石膏, 含水硫酸钙, 硬化石膏

Alabaster \Al"a*bas"ter\, n. [L. alabaster, Gr. 'ala`bastros,
said to be derived fr. Alabastron, the name of a town in
Egypt, near which it was common: cf. OF. alabastre, F.
alb[^a]tre.]
1. (Min.)
(a) A compact variety or sulphate of lime, or gypsum, of
fine texture, and usually white and translucent, but
sometimes yellow, red, or gray. It is carved into
vases, mantel ornaments, etc.
(b) A hard, compact variety of carbonate of lime, somewhat
translucent, or of banded shades of color; stalagmite.
The name is used in this sense by Pliny. It is
sometimes distinguished as oriental alabaster.

2. A box or vessel for holding odoriferous ointments, etc.;
-- so called from the stone of which it was originally
made. --Fosbroke.

Gypsum \Gyp"sum\ (j[i^]p"s[u^]m), n. [L. gypsum, Gr. gy`psos;
cf. Ar. jibs plaster, mortar, Per. jabs[imac]n lime.] (Min.)
A mineral consisting of the hydrous sulphate of lime
(calcium). When calcined, it forms plaster of Paris.
{Selenite} is a transparent, crystalline variety;
{alabaster}, a fine, white, massive variety.