a. Obsolete var. of cleft. See:cleft
b. Dialectal var. of cliff. AGI
c. A term used in southern Wales for various kinds of shale, esp. a
strong, usually silty, mudstone. AGI
In froth flotation, the prevailing balance of chemical energy reached by
the reacting electrical, physical, and chemical forces. Pryor, 1
The tendency of an inclined diamond-drill hole to follow an
upward-curving, increasingly flat course; also, the tendency of a diamond
or other rotary-type bit to drill a hole curved in the updip direction
when holes are drilled in alternating hard- and soft-layer rock having
bedding planes that cross the borehole at an angle other than 90 degrees
to the face of the bit. Long
One of the internal cracks formed in steel by differential expansion of
surface and interior during heating. The tendency for clinks to occur
increases with the hardness and mass of the metal, and with the rate of
heating. CTD
a. Fused or partly fused coal ash, a byproduct of combustion. CF:core
ACSG, 2
b. Coal that has been altered by an igneous intrusion.
See also:natural coke
c. Partially fused intermediate product in the manufacture of portland
cement.
An older term for a feldspathic rock, usually fissile; it is sonorous when
stuck with a hammer. Also spelled klinkstone. See also:phonolite
AGI
A prefix to the name of a mineral species or group to indicate monoclinic
symmetry as opposed to "ortho" indicating orthorhombic symmetry. See the
root mineral name.
a. A group name for amphiboles crystallizing in the monoclinic system.
b. Any monoclinic mineral of the amphibole group; e.g., hornblende,
cummingtonite, grunerite, tremolite, actinolite, riebeckite, glaucophane,
and arfvedsonite. CF:orthoamphibole
A collective name for the monoclinic pyroxenes. See also:clinopyroxene
English
The inclined crystallographic axis in the monoclinic system, designated a
or b in the first setting and a or c in the second. Most mineralogists use
the second setting and designate the clinoaxis a.
A monoclinic mineral, 2[(Mg,Fe)5 Al(Si3 Al)4 O (sub
10) (OH)8 ; chlorite group; occurs in greenschists.
Monoclinic and orthorhombic forms of chrysotile, as determined by X-rays.
See also:chrysotile
A monoclinic mineral, Cu3 (AsO4 )(OH)3 ; formerly
called clinoclasite. Syn:aphanesite
Former name for clinoclase.
An open crystal form of four sides parallel to the clinoaxis a in the
monoclinic system. CF:dome; orthodome.
A name for the pyroxene series clinoenstatite and clinohypersthene.
CF:enstenite
A monoclinic mineral, Fe2 Si2 O6 ; pyroxene group;
contains up to 15% Mg2 Si2 O6 toward
clinohypersthene; dimorphic with ferrosilite.
An instrument for making a borehole survey; i.e., to determine if, and in
what direction, a borehole has deviated off the true vertical plane.
See also:crooked hole
a. Cesaro's name for a monoclinic form of guarinite.
See also:orthoguarinite
b. A former name for hiortdahlite.
a. Breithaupt's name for tetrahedrite. English
b. A monoclinic mineral, CaZnSiO4 .H2 O; forms colorless to
white or amethystine clinohedral crystals.
An intermediate member in the series clinoenstatite-clinoferrosilite in
the pyroxene group.