Sentence examples for black ore from inspiring English sources

Mica (sericite), chlorite, tosudite, smectite, and mica-smectite interstratifications are contained in an extensive clay zone formed in a close association with kuroko (black ore) deposits.

Kuroko, which is a black ore produced in submarine volcanoes, includes minerals such as copper, lead, silver, and gold that are useful for industrial activities.

As the Vilna poet Moyshe Kulbak wrote, "Gezen hob ikh yidishe verter vi fayerlekh kleyne, vi fayerlekh kleyne... .. "To my eyes, Yiddish words are like little fires, little fires, Sparks extracted from black ore.

In the 16th century, manganese dioxide was called ma'n'ga'n'esum (note the two n's instead of one) by glassmakers, possibly as a corruption and concatenation of two words, since alchemists and glassmakers eventually had to differentiate a mag'n'esia 'n'egra (the black ore) from mag'n'esia alba (a white ore, also from Magnesia, also useful in glassmaking).

He was boasting about the richness of the blue-black ore at the Mount Whaleback mine, but he might as well have been bragging about the boom that has propelled economies across the Asia-Pacific region.

The only references to the issues of the war are fleeting mentions of coltan, which is short for columbite-tantalite, a black, metallic ore used in cellphones.

By 42,000 years ago the inhabitants were quarrying red and black hematite ore for cosmetic purposes on the top of the Ngwenya massif (where in 1964 a large opencut mining operation was developed to exploit the rich ore deposit).

The influence of temperature on bioleaching of a copper-silver concentrate of a black shale-ore was observed at 30, 48 and 76 °C.

The most widely distributed iron-bearing minerals are oxides, and iron ores consist mainly of hematite (Fe2O3), which is red; magnetite (Fe3O4), which is black; limonite or bog-iron ore (2Fe2O3·3H2O), which is brown; and siderite (FeCO3), which is pale brown.

The high winter sky arcing Arctic-wards toward Canada, the steely lake waters, the black silhouettes of ore boats gliding distantly by, the immense span of the Mackinac Bridge (one young woman plunges her car off it in a snowstorm): these seem to offer -- and at the same time withhold -- the reality that eludes them.

The mining of black charcoal and uranium ore also contribute to the economy.