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Ozokerite - Wikipedia, the free encyclopedia |
 | | The sole sources of commercial supply are in Galicia, at Boryslaw, Dzwiniacz and Starunia, though the mineral is found at other points on both flanks of the Carpathians. |
 | | Ozokerite deposits are believed to have originated in much the same way as mineral veins, the slow evaporation and oxidation of petroleum having resulted in the deposition of its dissolved paraffin in the fissures and crevices previously occupied by the liquid. |
 | | The mining of ozokerite was formerly carried on in Galicia by means of hand-labor, but in the modern ozokerite mines owned by the Boryslaw Actien Gesellschaft and the Galizische Kreditbank, the workings of which extend to a depth of 200 metres, and 225 metres respectively, electrical power is employed for hauling, pumping and ventilating. |
| en.wikipedia.org /wiki/Ozokerite (668 words) |
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