| 11. | There are also deposits of bituminous coal and fire clay in the region.
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| 12. | Bituminous coal is also mined, and converted to petrochemicals at Sasolburg.
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| 13. | The coal used was semi-bituminous and bituminous coal only inside the steam locomotives.
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| 14. | The mine, Orenda Mine # 1, extracted high quality, semi-bituminous coal.
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| 15. | The formation consists of bituminous coal fields that are an important economic resource.
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| 16. | In the vicinity are found bituminous coal, ganister rock, fire clay, and some timber.
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| 17. | The communities and the surrounding areas are the former homes of bituminous coal mines.
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| 18. | However, sometimes the case was made from bituminous coal waste.
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| 19. | Gas works would typically use oily bituminous coals as feedstock.
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| 20. | The area of Villablino has large reserves of bituminous coal.
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