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anthracite    音标拼音: ['ænθrəs,ɑɪt]
n. 无烟煤

无烟煤

anthracite
n 1: a hard natural coal that burns slowly and gives intense
heat [synonym: {anthracite}, {anthracite coal}, {hard coal}]

Anthracite \An"thra*cite\, n. [L. anthracites a kind of
bloodstone; fr. Gr. ? like coals, fr. 'a`nqrax, ?, coal or
charcoal. Cf. {Anthrax}.]
A hard, compact variety of mineral coal, of high luster,
differing from bituminous coal in containing little or no
bitumen, in consequence of which it burns with a nearly non
luminous flame. The purer specimens consist almost wholly of
carbon. Also called glance coal and blind coal.
[1913 Webster]


Coal \Coal\ (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol,
cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr.
jval to burn. Cf. {Kiln}, {Collier}.]
1. A thoroughly charred, and extinguished or still ignited,
fragment from wood or other combustible substance;
charcoal.
[1913 Webster]

2. (Min.) A black, or brownish black, solid, combustible
substance, dug from beds or veins in the earth to be used
for fuel, and consisting, like charcoal, mainly of carbon,
but more compact, and often affording, when heated, a
large amount of volatile matter.
[1913 Webster]

Note: This word is often used adjectively, or as the first
part of self-explaining compounds; as, coal-black; coal
formation; coal scuttle; coal ship. etc.
[1913 Webster]

Note: In England the plural coals is used, for the broken
mineral coal burned in grates, etc.; as, to put coals
on the fire. In the United States the singular in a
collective sense is the customary usage; as, a hod of
coal.
[1913 Webster]

{Age of coal plants}. See {Age of Acrogens}, under {Acrogen}.


{Anthracite} or {Glance coal}. See {Anthracite}.

{Bituminous coal}. See under {Bituminous}.

{Blind coal}. See under {Blind}.

{Brown coal} or {Brown Lignite}. See {Lignite}.

{Caking coal}, a bituminous coal, which softens and becomes
pasty or semi-viscid when heated. On increasing the heat,
the volatile products are driven off, and a coherent,
grayish black, cellular mass of coke is left.

{Cannel coal}, a very compact bituminous coal, of fine
texture and dull luster. See {Cannel coal}.

{Coal bed} (Geol.), a layer or stratum of mineral coal.

{Coal breaker}, a structure including machines and machinery
adapted for crushing, cleansing, and assorting coal.

{Coal field} (Geol.), a region in which deposits of coal
occur. Such regions have often a basinlike structure, and
are hence called {coal basins}. See {Basin}.

{Coal gas}, a variety of carbureted hydrogen, procured from
bituminous coal, used in lighting streets, houses, etc.,
and for cooking and heating.

{Coal heaver}, a man employed in carrying coal, and esp. in
putting it in, and discharging it from, ships.

{Coal measures}. (Geol.)
(a) Strata of coal with the attendant rocks.
(b) A subdivision of the carboniferous formation, between
the millstone grit below and the Permian formation
above, and including nearly all the workable coal beds
of the world.

{Coal oil}, a general name for mineral oils; petroleum.

{Coal plant} (Geol.), one of the remains or impressions of
plants found in the strata of the coal formation.

{Coal tar}. See in the Vocabulary.

{To haul over the coals}, to call to account; to scold or
censure. [Colloq.]

{Wood coal}. See {Lignite}.
[1913 Webster]


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  • Anthracite - Wikipedia
    Anthracite is the most metamorphosed type of coal, but still represents low-grade metamorphism, as found in the anthracite of the Narragansett Basin in Rhode Island which is of greenschist metamorphic facies (muscovite - chlorite sub-facies) [4]
  • Anthracite | Definition, Description, Facts | Britannica
    Anthracite, the most highly metamorphosed form of coal and the least plentiful form Anthracites are black to steel gray and have a brilliant, almost metallic luster They can be polished and used for decorative purposes They are rarely used for heating
  • What Is Anthracite? Properties, Uses, and Formation
    Anthracite is the highest rank of coal, containing 86 to 97 percent carbon It’s a dense, shiny black rock that burns hotter and cleaner than other types of coal, which is why it has been prized as a fuel source for centuries
  • What are the types of coal? | U. S. Geological Survey
    Anthracite: The highest rank of coal It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter
  • Anthracite (TV Mini Series 2024) - IMDb
    Anthracite: Created by Maxime Berthemy, Mehdi Ouahab, Fanny Robert With Hatik, Noémie Schmidt, Camille Lou, Nicolas Godart An old case is wrenched open when a reporter goes missing, leading his web sleuth daughter to a small mountain town haunted by a sect, secrecy and death
  • Anthracite - Types of Coal - Sandatlas
    What is anthracite? Anthracite is the highest-rank coal and represents the final stage in the transformation of plant material into carbon-rich rock
  • Anthracite - Essential Minerals Association
    What is Anthracite? Anthracite, considered one of the most robust and efficient carbon-based materials, is gaining attention for its diverse applications, particularly in green energy, sustainable steelmaking, and water treatment
  • Coal: Anthracite, Bituminous, Coke, Pictures, Formation, Uses
    It is easy to understand why the conditions for forming coal have occurred only a small number of times throughout Earth's history The formation of a coal requires the coincidence of highly improbable events Anthracite coal: Anthracite is the highest rank of coal It has a bright luster and breaks with a semi-conchoidal fracture
  • ANTHRACITE Definition Meaning - Merriam-Webster
    The meaning of ANTHRACITE is a hard natural coal of high luster differing from bituminous coal in containing little volatile matter and in burning very cleanly —called also hard coal
  • Anthracite - an overview | ScienceDirect Topics
    Anthracite is defined as a high-rank coal that has undergone the highest grade of metamorphism, characterized by its shiny black appearance, hardness, high fixed-carbon content (approximately 86–98%), and low volatile matter (2–12%)





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