30 
SALOON, common or Venetian, which enters the composi- 
Nat.Hist, of cosmetics ; and the indurated talc: to the 
former of these may also he referred the beauti¬ 
ful] green variety from Siberia, composed of dis¬ 
tinct groups of small diverging-radiated laminae. 
—Potstone or ollite, the lapis comensis of the an¬ 
cients, from Como in the Grison country, where it 
is turned on the lathe into most durable culinary 
vessels.—In this case is also placed a substance 
from New York, which has very much the ap¬ 
pearance of white laminar talc, but is said to be 
pure magnesia. 
{Case 18.) Contains steatitic substances,—No¬ 
ble serpentine, which, in combination with pri¬ 
mitive limestone, constitutes the marmo verde 
antico; common serpentine, among the varieties 
of which are best known those from Bareuth and 
from .Zoblitz in Saxony, where they are,manu¬ 
factured into vases and various other articles ; ser¬ 
pentine with garnets, magnetic ironstone, asbest, 
slaty talc, &cc .—Varieties of steatite, among which 
the most remarkable are those from Cornwall, 
that of a yellowish green colour from Greenlandj 
that from Gbpfersgriin in Bareuth, with small 
crystals of other mineral substances, converted 
into, and forming part of, the massive steatite,— 
To these are added some substances which are 
allied to the preceding, though different from 
them 
