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Definition: Gold blocking
(g[=o]ld), n. [AS. gold; akin to D. goud, OS. & G.
gold, Icel. gull, Sw. & Dan. guld, Goth. gul[thorn], Russ. &
OSlav. zlato; prob. akin to E. yellow. [root]49, 234. See
, and cf. Gild
, v. t.]
1. (Chem.) A metallic element of atomic number 79,
constituting the most precious metal used as a common
commercial medium of exchange. It has a characteristic
yellow color, is one of the heaviest substances known
(specific gravity 19.32), is soft, and very malleable and
ductile. It is quite unalterable by heat (melting point
1064.4[deg] C), moisture, and most corrosive agents, and
therefore well suited for its use in coin and jewelry.
Symbol Au (Aurum
). Atomic weight 196.97.
Note: Native gold contains usually eight to ten per cent of
silver, but often much more. As the amount of silver
increases, the color becomes whiter and the specific
gravity lower. Gold is very widely disseminated, as in
the sands of many rivers, but in very small quantity.
It usually occurs in quartz veins (gold quartz), in
slate and metamorphic rocks, or in sand and alluvial
soil, resulting from the disintegration of such rocks.
It also occurs associated with other metallic
substances, as in auriferous pyrites, and is combined
with tellurium in the minerals petzite, calaverite,
sylvanite, etc. Pure gold is too soft for ordinary use,
and is hardened by alloying with silver and copper, the
latter giving a characteristic reddish tinge. [See
.] Gold also finds use in gold foil, in the
pigment purple of Cassius, and in the chloride, which
is used as a toning agent in photography.
2. Money; riches; wealth.
For me, the gold of France did not seduce. --Shak.
3. A yellow color, like that of the metal; as, a flower
tipped with gold.
4. Figuratively, something precious or pure; as, hearts of
Age of gold
. See Golden age
, under Golden
, Fool's gold
, Gold dust
, etc. See under
, a mineral, found in Columbia and California,
composed of gold and mercury.
, one whose occupation is to beat gold into gold
Gold beater's skin
, the prepared outside membrane of the
large intestine of the ox, used for separating the leaves
of metal during the process of gold-beating.
(Zo["o]l.), any small gold-colored beetle of
the family Chrysomelid[ae]
; -- called also golden beetle
, printing with gold leaf, as upon a book
cover, by means of an engraved block. --Knight.
. See Cloth of gold
, under Cloth
, a part of the coast of Guinea, in West Africa.
. (Mining) See Cradle
, n., 7.
, the places, or region, where gold is found
by digging in sand and gravel from which it is separated
, a fragment of broken gold or jewelry.
(a) A buyer of old gold or jewelry.
(b) A goldsmith's apprentice.
(c) An itinerant jeweler. ``I know him not: he looks like
a gold-end man.'' --B. Jonson.
, a popular mania for gold hunting.
, a region in which are deposits of gold.
(a) One who finds gold.
(b) One who empties privies. [Obs. & Low] --Swift.
, a composite plant with dry and persistent
yellow radiating involucral scales, the Helichrysum St[oe]chas
of Southern Europe. There are many South
African species of the same genus.
, thin sheets of gold, as used by dentists and
others. See Gold leaf
or Gold knoppes
, a kind of lace, made of gold thread.
, a thin plate of gold or gilded metal.
, gold beaten into a film of extreme thinness, and
used for gilding, etc. It is much thinner than gold foil.
(Mining), a gold vein.
, a place where gold is obtained by mining
operations, as distinguished from diggings, where it is
extracted by washing. Cf. Gold diggings
, a lump of gold as found in gold mining or
digging; -- called also a pepito
. See Gold shell
, or Golden pheasant
. (Zo["o]l.) See under
, a general name for vessels, dishes, cups,
spoons, etc., made of gold.
. See under Mosaic