- An imitation of any veined and ornamental stone, as
marble, formed by a substratum of finely ground gypsum mixed with glue,
the surface of which, while soft, is variegated with splinters of
marble, spar, granite, etc., and subsequently colored and polished.
- Blue stone: lapis ... - Gem, lapis ... - Stone, lapis ... - A mineral of a fine azure-blue color, usually in small
rounded masses. It is essentially a silicate of alumina, lime, and
soda, with some sodium sulphide, is often marked by yellow spots or
veins of sulphide of iron, and is much valued for ornamental work.
Called also lapis lazuli, and Armenian stone.