Dictionary of Spanish Mining Terms - 1ORO1.COM

SPANISH MINING TERMS Bla
BIGORNA, Port, anvil, see yunque (1).
silversmith's anvil, see yunque (1).
BIGORNETA, small anvil ;
BIGORNIA, anvil, see yunque (1).
BIGOTE, (1) semicircular tap-hole of a furnace [horno (2)], syn. pecho
(1) del horno, see sangradrera (2) ; (2) bigotes, flames coming out of
infiltrations of metal in the cracks or crevices
(1) (Acad.) ; (3) bigotes,
of the inside of a furnace [horno (2)] (Acad.).
BILCA, Cerro de Pasco, Peru, raw -hide trough into which mercury from
the manga (2) drops (0. F. Pfordte).
BILITRONES, S. Am. communication between washing -troughs (Lucas).
BILLOTO, Port, log, block ; b. de madeira, log timber.
BIMBALETE, Peru, crude ore-mill operated by two men. The grinder
is a large stone with transverse bar by which a rocking motion is given,
sijn. quimbalete (Dwight), see boliche (4), comp. maray.
"
BINCHES, Arg. The gold-bearing conglomerate composed chiefly of
pebbles of Silurian grauwacke and slate is further characterised by
cubical crystals of pyrites locally termed binches, the abundance of
which is regarded by the miners as an indicator of the richness of the
conglomerate (this, however, is not invariably a safe guide), and by
the presence of an extremely fine magnetic black sand which is always
found in the washings to accompany the gold " (V. Novarese). See pirita,
lama (5). NOTE. The above word appears to be a corruption
of Engl. benches.
BISAGRA, hinge, syn. prov. alguaza, charnela (1), gozne,
see quicio (1).
BISALHO, Port. com. a bundle of rough diamonds (Elwes).
BISAUTOMOTOR, plan inclinado b. = Fr. plan incline bisautomateur.
BISARMA, Port. com. two-edged hatchet, see u. machado.
BISEL, (1) bevel, bevel edge, chamfer, see cortar (2); (2)
cutting edge of any tool ; blast, bor. bit of a borer, syn.
boca (6), broca (2), corte (1), cuchareta, filo, mecha (5),
tajo (8), taladro (3), equiv. Fr. ctseau, Ger. Bohrschneide ;
b. en cruz, bor. cross-bit, see Fig. 17, equiv. Ger. Kreuz- *''. 17. itfsel
meissel,^ corona (1).
BISMUT, BISMUTO, (1) bismuth ; (2) bismuto-blenda, eulytite,
an ore from Chihuahua, Mex., containing from 9 to 29 per cent,
of bismuth, and associated with copper pyrites, galena and blende
(the last two occasionally). NOTE. According to Dana, eulytite is a
bismuth s'licate from Johanngeorgenstadt.
BITES, Ant. Col. slime produced by the grinding or stamping of ore, see
also fango, lama, lodo, comp. mamaja (2).
BITOLA, Port. (1) standard measure, rule ; (2) rail, gauge, see ancho.
BLANCO, CA, adj. white, for plata blanca, see u. plata (2) ; metal bianco,
en bianco, hemp rope in its
cerargyrite or horn silver (plata cornea) ;
natural state, i.e., without a coating of pitch, see canamo.
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