174 Mining Terms. 
QuicKksILveR. See Mercury. 
Raise. A shaft or winze which has been worked 
from. below. 
Ruyotytr. A name common to igneous rocks of 
a wavy texture, indicative of movement or flowing when 
in a fluid state. 
RirFLte Brooks. Cross sections of timber set on 
the floor of a sluice, with irregular spaces between, in 
which the gold settles. American. 
Rise. See Raise. 
Reer. An Australian term for lode or ledge. 
Ros. To gut a mine; to work for the ore in sight 
‘without regard to supports, reserves or any other future 
considerations. 
Rocker. See Cradle. 
Roor. The stratum or rock overlying a deposit, 
or flat vein. 
Royatty. The dues to the lessor. 
Rusty. Oxidized. Ore coated with oxide. Ap- 
plies to gold which will not easily amalgamate: 
Scate. A loosened fragment of rock threatening 
to break off and fall. 
Scnist. Crystalline, or metamorphic rock with 
slaty structure; usually carrying mica, ‘sémetimes ar- 
gillaceous. 
SEGREGATIONS. All those aggregations of ore hay- 
ing irregular form but definite limits. They differ 
from. beds and lodes by the irregularity of their form; 
- from impregnations by their definite limits. Von Cotta. 
Setvace. A lining; a gouge; a thin band of clay 
often found in the vein, upon the wall. 
Ser. Portion of ground taken by a tributer. 
Suarr. A pit sunk from the surface; an opening 
more or less perpendicular sunk on, or sunk to reach, * 
the vein. 
Surrr. A miners turn or spell of work. Web- 
ster. Two shifts imply 16 to 20 hours work; three 
shifts imply 24 hours’ work. 
Situ. A windlass frame. (2) Rest for posts. 
