A large-scale basin in which sedimentation has occurred or is taking
place, as distinguished from a tectonic basin due to folding of
preexisting rocks; e.g., the Anglo-Parisian cuvette of Southeast England
and Northeast France, in which Cenozoic rocks accumulated and were later
folded into several distinct but smaller basins, such as the London Basin
and the Paris Basin. Etymol: French, small tub or vat. Sometimes
misspelled curvette. AGI
A single-chain conveyor with an open side to facilitate power loading.
Sinclair, 5
The name of an iron range in Minnesota. It is composed of the syllables,
"Cuy" and "Una," the former being a contraction of the given name of
Cuyler Adams, who was active in the early development of that territory,
and the last syllable being the name of his dog "Una."
See:coupled wave
White; crystalline; NH2 CN . Formed variously by the action of
cyanogen chloride on ammonia. Standard, 2
Any substance present in a pulp that attacks or destroys the cyanide salt
being used to dissolve precious metals. Pryor, 1
A process of extracting gold and silver as cyanide slimes from their ores
by treatment with dilute solutions of potassium cyanide or sodium cyanide.
The slimes are subsequently fused and cast into ingots or bullion.
Henderson
A large tank, with a filter bottom, in which sands are treated with sodium
cyanide solution to dissolve out gold. CTD
Usually refers to cyanide solution in circulation in a mill treating gold
or silver ores. The stock or solution is of two main types: barren, from
which all possible value has been extracted, and pregs or pregnant, which
is charged with gold or silver and awaits their removal. Pryor, 4
Introducing carbon and nitrogen into the surface of a steel alloy by
heating in a bath of molten sodium cyanide and usually followed by quench
hardening.
In ore dressing, smelting, and refining, a person who tends equipment in
which finely ground gold or silver ore is treated with a cyanide solution
to separate free gold or silver from the gangue (waste material).
DOT
See:cyanide process
A process for the extraction of gold from finely crushed ores,
concentrates, and tailings by means of cyanide of potassium or sodium used
in dilute solutions. The gold is dissolved by the solution and
subsequently deposited upon metallic zinc or other materials.
Syn:cyanide mill
Fay
The mixture obtained by grinding crude gold and silver ore and dissolving
the precious-metal content in a sodium-cyanide solution. CCD, 2
Precious metal in the form of finely divided particles precipitated from a
cyanide solution used in its extraction from ore. ASM, 1
The process of treating finely ground gold and silver ores with a weak
solution of sodium or potassium cyanide, which readily dissolves these
metals. The precious metals are then obtained by precipitation from
solution with zinc, or by adsorbtion on activated carbon. CTD
A former spelling of kyanite.
A phosphoriferous variety of chrysocolla from Nijni Tagilks, Perm, Russia.
A monoclinic mineral, K2 Cu(SO4 )2 .6H2 O ;
picomerite group; a clear-blue alteration product from Mt. Vesuvius,
Italy.
a. A univalent radical; present in hydrogen cyanide and in other simple
and complex cyanides (as ferricyanides). Webster 3rd
b. Colorless, flammable, poisonous gas; (CN)2 . It has an odor like
that of peach leaves, is variously formed (as by heating mercuric
cyanide), and polymerizes readily. Webster 3rd
A former name for chalcanthite. Also spelled cyanose.