 | | Journal (article/letter/editorial) | | mine tunnel walls; weathering products of mine dumps and slag). A second human influence on the distribution...in the combustion products of coal mines, waste dumps, or peat bogs. The origin of a particular fire is...localities A. Alteration phases recovered from ore dumps Delrioite 3 Sr(V5+O3)2·4H2O Jo Dandy mine, Paradox...localities, Greece Zn5(OH)8Cl2·H2O Richelsdorf slags, Hesse, Germany Pb3O3Sb3+(OH)Cl2 Lavrion District...associated with mine dump fires, including coal mine dumps Acetamide 1 CH3CONH2 Dump in a coal mine, L’viv-Volynskii |  | | Book | | large ilmenite masses could be seen on the old dumps. In 1975-1976, Brunet collected sharp, black, flattened...7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment, many more "lost" localities...localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during |  | | Book (edition) | | Society of Safety Engineers (ASSE) Association of Iron Ore Exporting Countries (AIOEC) Bituminous Coal Institute...distinguished by an Archimedes spiral, through which the ore is fed and discharged. Grinding is effected by flint...formation involving the separation and sinking of ore minerals below a silicate shell during the cooling...acid cure In uranium extraction, sulfation of moist ore before leaching. Pryor, 1 acid-dip survey A method...extraction of copper from oxide- or sulfide-bearing ore and dissolution of uranium from sandstone ores. Acid |  | | Book | | refractive indices. Many sulfides are very important ore 1ninerals. 4 Detailed Description of the Common...the secondary enrichment processes of hydrothermal ore deposits. Pyrite is rare in pegmatite veins. Gabbros...specularite as smaJl scales or flakes. Reniform (kidney ore) or botryoidal forms are common as dehydrated goeth...Bose, M. K. 1958. Goethite-bematite relation- an ore microscope observation. Amer. Mineral.. 43, 989....pyroxenes than ol ivines. Ilmenite is quite common in ore veins, where it appears most commonly with chalcopyrite |
|
