TALC n.
g in foliated masses. It is hydrous silicate of magnesia. Steatite, or soapstone, is a compact granular variety. Indurated talc, an impure, slaty talc, with a nearly compact texture, and greater hardness than common talc; -- called also talc slate.
VENETIAN a.
e pattern is therefore commonly made up of simple stripes. -- Venetian chalk, a white compact or steatite, used for marking on cloth, etc. -- Venetian door (Arch.), a door having long, narrow windows or panes of glass on the sides. -- Venetian glass, a kind of glass made by the Venetians, for decorative purposes, by…
VOLCANIC a.
anic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or vitreous.