The system with radial cracks issuing from the center of the hole as a
result of the tangential stresses. Langefors
A variety of opaque common opal having a fine red color. CMD
Crystalline quartz with a rose pink color, due probably to titanium in
minute quantity. The color is destroyed by exposure to strong sunlight.
Used as a gem or an ornamental stone. See also:Bohemian ruby
Fay
A steel that shows a peculiar fracture and texture in the interior,
different from that near the surface. Standard, 2
The yellow-brown variety of topaz changed to rose pink by heating. These
crystals often contain inclusions of liquid carbon dioxide. CMD
A radially symmetric, sand-filled crystalline aggregate or cluster with a
fancied resemblance to a rose; formed in sedimentary rocks by barite,
marcasite, or pyrite. See also:petrified rose
Disks of copper (red from the presence of suboxide) formed by cooling the
surface of molten copper through sprinkling with water. Also called rose
copper. Fay
A flowerlike or scalloped pattern of a mineral aggregate. AGI
Cobalt sulfate. See also:bieberite
vitriol. Standard, 2
A monoclinic mineral, S (gamma sulfur); dimorphous with sulfur.
Syn:gamma sulfur
a. The hard, amber-colored residue left after distilling off volatile oil
from pine pitch. API, 1
b. To melt a resin and apply a coat to the right-handed threads of heated
rod couplings; the coating sets when cooled, which permits the rods to be
used in the same manner as left-hand-threaded rods in fishing operations.
Also called rosining. Long
A yellow variety of zinc blende, ZnS. When dark in color it is called
blackjack.
Drill-rod or casing couplings to which hot rosin was applied and that were
joined before the rosin cooled. Long
The act or process of milling a metal object in a borehole with a rose
bit. Long
A yellow variety of sphalerite. Also called resin jack, rosin blende,
rosen zinc. CF:blackjack
An equation relating to fine grinding: for most powders that have been
A reddish or yellowish variety of cassiterite. Also spelled resin tin.
Sphalerite of a rosiny appearance. Hess
a. See:anorthite
In petrography, a quantitative method of estimating the volume percentages
A rose-pink variety of grossulatire garnet. Also called landerite and
prepared by grinding, the relationship between R, the residue remaining on
any particular sieve, and the grain size in micrometers (x) is
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx
exponential: R = 100e-bx (super n , where e is the base of the
natural logarithm and b and n are constants. Dodd
b. An impure muscovite as alteration product.
of the minerals in a rock. Thin sections of a rock are examined with a
microscope fitted with a micrometer that is used to measure the linear
intercepts of each mineral along a particular set of lines. This method is
based on the assumption that the area of a mineral on an exposed surface
is proportional to its volume in the rock mass. AGI
xalostocite. From Xalostoc, Morelos, Mexico. English