SALOON, 
Nat. Hist. 
30 
common or Venetian, which enters the composi¬ 
tion of cosmetics, and the indurated talc : to the 
former of these may also be referred the beauti¬ 
ful gieen 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 culi¬ 
nary vessels.—In this case is also placed a sub¬ 
stance from New York, which has very much 
the appearance of white laminar talc, but is a 
hydrate of magnesia. 
(Case 18.) Contains steatitic substances.-—No¬ 
ble serpentine, which, in combination with pri¬ 
mitive limestone, constitutes the mar mo verde 
antico ; common serpentine, among the varieties 
of which are best known those from Bareuth and 
from Zoblitz in Saxony, where they are manufac¬ 
tured into vases and various other articles ; ser¬ 
pentine with garnets, magnetic ironstone, asbest, 
slaty talc, &c.—Varieties of steatite, among which 
the most remarkable are those from Cornwall, 
that of a yellowish green colour from Greenland, 
that from Gopfersgsun 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 
