 | Friedrich Mohs - 1825 - 500 pages
...with the remaining generic characters, we find that it is excluded from the genus' Scheelium-ore hy its too great hardness, and too little specific gravity...the individual must belong to this species, might nevertheless be erroneous. There could exist a second species of this genus. Hence we must accurately... | |
 | Robert Jameson - Mineralogy - 1837 - 328 pages
...Manganeseore, by hardness and specific gravity, both of them being too high ; as also by its white streak, which only agrees with that genus from which...differs most by its hardness and specific gravity. The form also does not agree with any in these genera, consequently the individual can belong to no... | |
 | John Joseph Griffin - Crystallography - 1841 - 548 pages
...Manganese-ore, by hardness and specific gravity, both of them being too great; as also by its uncolonred streak, which only agrees with that genus from which...the individual must belong to this species, might nevertheless be erroneous. There could exist a second species of this genus. Hence we must accurately... | |
 | John Joseph Griffin - Crystallography - 1841 - 536 pages
...specific gravity, both of them being too great; as also by its uncoloured streak, which only agree* with that genus from which the individual differs...the individual must belong to this species, might nevertheless be erroneous. There could exist a second species of this genus. Hence we must accurately... | |
 | John Joseph Griffin - Crystallography - 1841 - 538 pages
...as also by its uncoloured streak, which only agrees with that genus from which the individual diners most by its hardness and specific gravity. From all...therefore entitled to give it the name of Tin-ore. " Tliis genus contains but one species. The conclusion that the individual must belong to this species,... | |
| |
Scheelium-ore hy its too great hardness, and too little specific gravity ; from the genera Tantalum-ore, Uranium-ore, Cerium-ore, Chrome-ore, Iron-ore, and Manganese-ore, by hardness and specific gravity, both of them being too great; as also by its uncoloured... 