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Dictionary of Spanish Mining Terms - 1ORO1.COM

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SPANISH MINING TERMS Via<br />

USTULAQAO, Port, calcining, roasting, see tostacion.<br />

USTULAR, Port, to roast, see tostar ; u. em medas, to roast in heaps.<br />

UTILIDADE, Port, pr<strong>of</strong>it or return, see beneficio (2).<br />

VALVULA, v. de chapa, ordinary lifting valve; v. de portezuela,<br />

valve hinged at one end, like a clack (Ezquerra) ; (2) Almaden, Sp.<br />

opening on the hemispherical top <strong>of</strong> a Bustamante (aludel) furnace,<br />

through which the charge is completed, and which is closed by an iron<br />

plate.<br />

VAPOR, Port, choke-damp, seebochomo (1).<br />

VARADAS, Sierra Almagrera, Sp. vacations <strong>of</strong> the miners, which include<br />

semana santa, feria de cuevas, and fiestas de Natividad (Moncada).<br />

VARMA (Fr. varme), met. (iron) twyer-plate <strong>of</strong> a finery, comp. forja (4).<br />

VASO, (6) Mex. in retorting amalgam, in the patio process, the conical<br />

condenser, with a concave bottom, in which the candelero (6) (suppl.) is<br />

placed, and which holds the capellina, see recibidor (suppl.).<br />

VEIEIRO, Port. Braz. a large vein or lode ; veieiros-camadas, bedded<br />

veins.<br />

VENERILLO, Tipuani, Bol. a 2-foot bed <strong>of</strong> auriferous sand on false bed-<br />

rock <strong>of</strong> rounded pebbles ; above is a bed <strong>of</strong> red clay and rounded<br />

pebbles with fragments <strong>of</strong> quartz and schist (F. Glaizot) venerillo<br />

sometimes lies directly on greda (8) (suppl.) (Comynet).<br />

VENERO, (5) Tipuani, Bol. recent auriferous alluvium or gravel mixed<br />

with pebbles, average thickness 1 m., resting on bed-rock, and covered by<br />

greda (8) (suppl.) (Comynet), $ee banqueria, tiquita, toreria (suppl.).<br />

VENTANILLA, (4) met. door <strong>of</strong> a furnace, see u. puerta (1).<br />

VENTEAR (to blow), Ant. Col. the third operation, in washing, moles in<br />

a batea panda, consisting <strong>of</strong> a circular vanning movement, see asentar (8)<br />

(suppl.) ; venteando, Bol. pouring dried tin concentrates from a height<br />

<strong>of</strong> from 4 to 6 feet on a sheet <strong>of</strong> canvas, while a moderate breeze is<br />

blowing (G. W. Dean) a kind <strong>of</strong> " dry-blowing."<br />

VENTER6N, met. flue <strong>of</strong> a reverberatory furnace, syn. tragante (5).<br />

VENTILAQAO, Port, ventilation "<br />

; mech. prep. dry-blowing."<br />

VERGA, Port. timb. cap-piece (R. B. Johnston), see capa (4).<br />

VERGALHAO (thin iron bars), Port. Braz. in the diamond fields, a stratum,<br />

below the grass roots, <strong>of</strong> angular (crushed) quartz, and beds <strong>of</strong> solid<br />

quartz, 4 to 5 inches thick (J. Mawe).<br />

VERTEDERO, (4) mech. prep, any inclined launder, channel or passage<br />

which conducts water or pulp to or from a dressing appliance.<br />

VETA, (2) vetas, Corocoro, Bol. conglomeratic strata, striking it N. 30 W.,<br />

dipping S.W., and containing copper in coarse particles. Strata<br />

striking S. 30 E. and dipping N.E., with finer quartz grams, and copper<br />

fine-grained and in masses=ramos (L. W. Strauss).<br />

VIA, Port. (1) road ; v. ferrea, railway ; (2) process or method, see beneficio<br />

(3).<br />

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