Explosive consisting of an intimate mechanical mixture of substances which
consume and generate oxygen but are not in themselves explosive. Inorganic
nitrates, chlorates, and perchlorates. Most important is ammonium nitrate.
Fraenkel
In tunneling, digging in dirt and rock in the same heading at the same
time. Nichols, 1
Upright lime kiln in which the fuel (coal) is mixed and burned with the
limestone charge. Mersereau, 2
A mine fan in which the flow is both radial and axial. The Schicht fan is
of this type and has the advantage that it can produce a high water gage
with a single stage. This fan, however, is not well suited to mines where
a large change in equivalent orifice may occur. CF:axial-flow fan;
radial-flow fan. Nelson
An inward flow, reaction-type water turbine, in which the runner vanes are
so shaped that they are acted on by the water pressure both axially and
radially. Hammond
a. See:clay mineral
b. Layered silicates, generally of the smectite group, in which different
layered mineral species are stacked in an ordered or random fashion.
A mineral whose structure consists of alternating layers of clay minerals
and/or mica minerals; e.g. chlorite, made up of alternating biotite and
brucite sheets. AGI
Ore containing both oxidized and unoxidized minerals.
See also:oxidized ore; sulfide ore. Nelson
a. An apparatus used to thoroughly mix drilling fluid water with drilling
ingredients. May be cement, mud, or lost circulation materials. Also
called atomizer; mud mixer. Long
b. See:agitator
A funnel-shaped hopper attached to the body of a mud mixer into and by
means of which the dry, powdered, drill-mud and/or cement ingredients are
fed into the mud mixer. Long
One who mixes sintered lead or zinc ore with such materials as pulverized
coal and coke, salt, skimmings, water, and chemical solutions preparatory
to smelting. Also called mixer operator. DOT
a. In powder metallurgy, the thorough intermingling of powders of two or
more different materials (not blending). ASM, 1
b. An instrumentation technique used in seismograph recording in which a
certain portion of the energy from each amplifier channel is fed to the
adjacent channels, giving results somewhat analogous to those obtained
from the use of multiple geophones to attenuate noise. AGI
A pit in which drill mud is mixed and stored until the mud is cured and
needed for use as a drill circulation fluid. Long
A common soil stabilization method in which the soil on the site is first
pulverized, then mixed with an admixture or stabilizing agent, compacted
and, if necessary, surfaced. All the work is carried out on the site.
CF:plant mix
a. A hexagonal mineral, BiCu6 (AsO4 )3 (OH)6
.3H2 O . CF:chlorotile
b. The mineral group agardite, goudeyite, mixite, and petersite.
Cerium alloy (55% to 65%) containing rare-earth metals and iron.
Bennett
A commingling in which the ingredients retain their individual properties
or separate chemical nature. See also:mechanical mixture
Standard, 2
One of the series of minerals forming the scapolite groups, consisting of
a mixture of the meionite and mariolite molecules. It includes those
minerals with 54% to 57% silica, and occurs in clear crystals in the
ejected masses on Mount Somma, Vesuvius, Italy. Also called dipyrite.
See also:dipyre
Synthetic manufactured diamond. Long
a. A ditch or deep trench.
b. To surround with a ditch.
A backing of clay, as for the masonry lining of a shaft.
Standard, 2