1.
[syn: stannite, tin pyrites]
The Collaborative International Dictionary of English v.0.48:
Pyrites \Py*ri"tes\, n. [L., fr. Gr. ?, fr. ? fire. See Pyre.]
(Min.)
A name given to a number of metallic minerals, sulphides of
iron, copper, cobalt, nickel, and tin, of a white or
yellowish color.
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Note: The term was originally applied to the mineral pyrite,
or iron pyrites, in allusion to its giving sparks when
struck with steel.
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Arsenical pyrites, arsenopyrite.
Auriferous pyrites. See under Auriferous.
Capillary pyrites, millerite.
Common pyrites, isometric iron disulphide; pyrite.
Hair pyrites, millerite.
Iron pyrites. See Pyrite.
Magnetic pyrites, pyrrhotite.
Tin pyrites, stannite.
White iron pyrites, orthorhombic iron disulphide;
marcasite. This includes cockscomb pyrites (a variety of
marcasite, named in allusion to its form), spear pyrites,
etc.
Yellow pyrites, or Copper pyrites, the sulphide of copper
and iron; chalcopyrite.
[1913 Webster] Pyritic
The Collaborative International Dictionary of English v.0.48:
Tin \Tin\, n. [As. tin; akin to D. tin, G. zinn, OHG. zin, Icel.
& Dan. tin, Sw. tenn; of unknown origin.]
1. (Chem.) An elementary substance found as an oxide in the
mineral cassiterite, and reduced as a soft silvery-white
crystalline metal, with a tinge of yellowish-blue, and a
high luster. It is malleable at ordinary temperatures, but
brittle when heated. It is softer than gold and can be
beaten out into very thin strips called tinfoil. It is
ductile at 2120, when it can be drawn out into wire which
is not very tenacious; it melts at 4420, and at a higher
temperature burns with a brilliant white light. Air and
moisture act on tin very slightly. The peculiar properties
of tin, especially its malleability, its brilliancy and
the slowness with which it rusts make it very serviceable.
With other metals it forms valuable alloys, as bronze, gun
metal, bell metal, pewter and solder. It is not easily
oxidized in the air, and is used chiefly to coat iron to
protect it from rusting, in the form of tin foil with
mercury to form the reflective surface of mirrors, and in
solder, bronze, speculum metal, and other alloys. Its
compounds are designated as stannous, or stannic. Symbol
Sn (Stannum). Atomic weight 117.4.
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2. Thin plates of iron covered with tin; tin plate.
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3. Money. [Cant] --Beaconsfield.
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Block tin (Metal.), commercial tin, cast into blocks, and
partially refined, but containing small quantities of
various impurities, as copper, lead, iron, arsenic, etc.;
solid tin as distinguished from tin plate; -- called also
bar tin.
Butter of tin. (Old Chem.) See Fuming liquor of Libavius,
under Fuming.
Grain tin. (Metal.) See under Grain.
Salt of tin (Dyeing), stannous chloride, especially so
called when used as a mordant.
Stream tin. See under Stream.
Tin cry (Chem.), the peculiar creaking noise made when a
bar of tin is bent. It is produced by the grating of the
crystal granules on each other.
Tin foil, tin reduced to a thin leaf.
Tin frame (Mining), a kind of buddle used in washing tin
ore.
Tin liquor, Tin mordant (Dyeing), stannous chloride, used
as a mordant in dyeing and calico printing.
Tin penny, a customary duty in England, formerly paid to
tithingmen for liberty to dig in tin mines. [Obs.]
--Bailey.
Tin plate, thin sheet iron coated with tin.
Tin pyrites. See Stannite.
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WordNet (r) 3.0 (2006):
tin pyrites
n 1: a dark grey mineral with a metallic luster that is a source
of tin [syn: stannite, tin pyrites]