anthracitic

Kazakhstan contains Central Asia's largest recoverable coal reserves, with 34.5 billion short tons of mostly anthracitic and bituminous coal.

Energy profile of Kazakhstan 2007

Fourteen years old as near as he could figure, he was a wild mop of black hair handing in a wind-swept mane to his shoulders, and anthracitic eyes.

The Eternal Mercenary Sadler, Barry 1980

Similar anthracitic asphalt or asphaltic anthracite is common in the Calciferous sand-rock in Herkimer County, New York, where it is associated with, and often contained in, the beautiful crystals of quartz for which the locality is famous.

Scientific American Supplement, No. 362, December 9, 1882 Various

With a view to accelerate the perfect combustion of these coals, sugar, starch, bitumen, and bituminous coals -- substances rich in hydrogen -- were employed, mixed in varying proportions with the anthracitic coal, but without the anticipated effect.

Scientific American Supplement, No. 288, July 9, 1881 Various

Now the estimation of the ash of any of these varieties of coal would afford no evidence as to the class to which that coal belongs, and there is no simple test that will give the calorific power of a coal, and at the same time indicate the degree of bituminous or anthracitic character which it possesses.

Scientific American Supplement, No. 288, July 9, 1881 Various

At a little distance from the focus of volcanic action, the Cretaceous coals of southwestern Colorado have been made bituminous and coking, while at the Placer Mountains the same stratum may be seen in its anthracitic and lignitic stages.

Scientific American Supplement, No. 362, December 9, 1882 Various

This is suggested by the fact that in places where hot volcanic lavas have gone through coal beds they have locally produced coals of anthracitic and coke-like varieties.

The Economic Aspect of Geology 1915

Complex and parallel formations; (a) Alternate beds of grey and stratified limestone, anthracitic mica-slate, anhydrous gypsum and grauwacke; (b) clay-slate, black limestone, grauwacke with greenstone, syenite, transition-granite and porphyries with a base of compact felspar; (c)

Travels to the Equinoctial Regions of America 1851

Complex and parallel formations; (a) Alternate beds of grey and stratified limestone, anthracitic mica-slate, anhydrous gypsum and grauwacke; (b) clay-slate, black limestone, grauwacke with greenstone, syenite, transition-granite and porphyries with a base of compact felspar; (c) Euphotides, sometimes pure and covered with jasper, sometimes mixed with amphibole, hyperstein and grey limestone;

Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 Alexander von Humboldt 1814

Without enlarging further upon these futile trials -- all carefully and repeatedly verified -- the results of my experiments and experience show that for coals of an anthracitic character, yielding more than 87 per cent. of coke, or for coke itself, Thompson's calorimeter is not suited as an indicator of their comparative calorific power, for the simple reason that some of the carbon is so graphitic in its nature that it will not burn perfectly when mixed with nitrate and chlorate of potash.

Scientific American Supplement, No. 288, July 9, 1881 Various