Oxygen deficiency in the blood cell or tissues of the body in such degree
as to cause psychological and physiological disturbances. Anoxia may
result from a scarcity of oxygen in the air being breathed or from an
inability of the body tissues to absorb oxygen under conditions of low
ambient pressure. Also called hypoxia. Syn:oxygen deficiency
Hunt
In blast-hole drilling, the cuttings around the hole collar.
Krumlauf
A triclinic mineral, WAlO3 (OH)3 ; in tungstic ochers in
central Africa and Tasmania.
A monoclinic mineral, Cu(OH,Cl)2 .3H2 O ; lavender colored;
from the Centennial Mine in Calumet, MI. CF:calumetite
An orthorhombic mineral, 4[(Mg,Fe)7 Si8 O22 (OH) (sub
2) ] ; amphibole group; commonly lamellar or fibrous, green to
clove-brown; in schists from metamorphosed ultramafic rocks; a nonspinning
grade of asbestos.
From Greek anthrax, coal; also, a precious stone; combining forms used
commonly to denote substances resembling or derived from coal, or fossils
found in coal measures. Standard, 2
Obtained by the distillation of coal tar. Used in the manufacture of
dyestuffs. Crispin
A heavy green oil that distills from coal tar above 270 degrees C and is
the principal source of anthracene, phenanthrene, and carbozole.
Webster 3rd
a. A hard, black lustrous coal containing a high percentage of fixed
carbon and a low percentage of volatile matter. Commonly referred to as
hard coal, it is mined in the United States, mainly in eastern
Pennsylvania, although in small quantities in other States. BCI
b. The rank of coal, within the anthracitic class of Classification D 388,
such that on the dry and mineral-matter-free basis, the volatile matter
content of the coal is greater than 2% but equal to or less than 8% (or
the fixed carbon content is equal to or greater than 92% but less than
98%), and the coal is nonagglomerating. ASTM
c. Coal of the highest metamorphic rank, in which fixed-carbon content is
between 92% and 98% (on a dry, mineral-matter-free basis). It is hard and
black, and has a semimetallic luster and semiconchoidal fracture.
Anthracite ignites with difficulty and burns with a short blue flame,
without smoke. Syn:hard coal; stone coal; kilkenny coal.
See also:solid smokeless fuel
anthracite-coal-base carbon refractory
A manufactured refractory comprised substantially of calcined anthracite
coal. ASTM
The sizes by which anthracite coal is marketed. The sizes are called
broken, egg, stove, chestnut, pea, and buckwheat. Size is graded according
to the size of round mesh a piece will pass through.
In Wales, fine screenings used in making pitch-bonded briquets and for
mixing with bituminous coal to be burned in cement kilns, on chain grate
stokers, and as powdered fuel. Hess
The product from an anthracite coal-preparation plant, usually below 1/8
in (3.2 mm). See also:duff; fines; grain. Nelson
Minute particles of anthracite too fine to be used in ordinary combustion.
Webster 3rd
Pertaining to anthracite. AGI
a. The science of coal. Tomkeieff
b. Coal petrography, a branch of geology dealing with the physical
constitution of coal in much the same way that petrography deals with the
mineral composition of rocks. It is concerned with the physical variations
in coal that make it possible to classify coal material by type.
AGI
An instrument for determining the amount of carbon dioxide in a mixture of
gases. Standard, 2
See:bituminous limestone; stinkstone; swinestone.
Massive fibrosis of the lungs marked by shortness of breath from
inhalation of carbon and quartz dusts. Also called miner's phthisis.
See also:anthracosis
A deposition of coal dust within the lungs from inhalation of sooty air.
Syn:blacklung; collier's lung. CF:anthracosilicosis
See also:mining disease
Anthracite used for filtration purposes. Jones, 1