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Mineral charcoal
(gcide) | Mineral \Min"er*al\, a.
1. Of or pertaining to minerals; consisting of a mineral or
of minerals; as, a mineral substance.
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2. Impregnated with minerals; as, mineral waters.
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Mineral acids (Chem.), inorganic acids, as sulphuric,
nitric, phosphoric, hydrochloric, acids, etc., as
distinguished from the organic acids.
Mineral blue, the name usually given to azurite, when
reduced to an impalpable powder for coloring purposes.
Mineral candle, a candle made of paraffin.
Mineral caoutchouc, an elastic mineral pitch, a variety of
bitumen, resembling caoutchouc in elasticity and softness.
See Caoutchouc, and Elaterite.
Mineral chameleon (Chem.) See Chameleon mineral, under
Chameleon.
Mineral charcoal. See under Charcoal.
Mineral cotton. See Mineral wool (below).
Mineral green, a green carbonate of copper; malachite.
Mineral kingdom (Nat. Sci.), that one of the three grand
divisions of nature which embraces all inorganic objects,
as distinguished from plants or animals.
Mineral oil. See Naphtha, and Petroleum.
Mineral paint, a pigment made chiefly of some natural
mineral substance, as red or yellow iron ocher.
Mineral patch. See Bitumen, and Asphalt.
Mineral right, the right of taking minerals from land.
Mineral salt (Chem.), a salt of a mineral acid.
Mineral tallow, a familiar name for hatchettite, from its
fatty or spermaceti-like appearance.
Mineral water. See under Water.
Mineral wax. See Ozocerite.
Mineral wool, a fibrous wool-like material, made by blowing
a powerful jet of air or steam through melted slag. It is
a poor conductor of heat.
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Mineral charcoal
(gcide) | Charcoal \Char"coal`\, n. [See Char, v. t., to burn or to
reduce to coal, and Coal.]
1. Impure carbon prepared from vegetable or animal
substances; esp., coal made by charring wood in a kiln,
retort, etc., from which air is excluded. It is used for
fuel and in various mechanical, artistic, and chemical
processes.
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2. (Fine Arts) Finely prepared charcoal in small sticks, used
as a drawing implement.
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Animal charcoal, a fine charcoal prepared by calcining
bones in a closed vessel; -- used as a filtering agent in
sugar refining, and as an absorbent and disinfectant.
Charcoal blacks, the black pigment, consisting of burnt
ivory, bone, cock, peach stones, and other substances.
Charcoal drawing (Fine Arts), a drawing made with charcoal.
See Charcoal, 2. Until within a few years this material
has been used almost exclusively for preliminary outline,
etc., but at present many finished drawings are made with
it.
Charcoal point, a carbon pencil prepared for use in an
electric light apparatus.
Mineral charcoal, a term applied to silky fibrous layers of
charcoal, interlaminated in beds of ordinary bituminous
coal; -- known to miners as mother of coal.
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