Category:Hard coal
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日本語: 無煙炭
often greasy, shiny, combustible organic sedimentary rock that consists of more than 75 per cent carbon by weight | |||||
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Subcategories
This category has the following 2 subcategories, out of 2 total.
A
R
- Rußkohlenflöz Cainsdorf (10 F)
Media in category "Hard coal"
The following 10 files are in this category, out of 10 total.
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Formation periods of the most important coal deposits worldwide.svg 620 × 375; 65 KB
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Bituminous Coal 01 10x (24800381637).jpg 3,417 × 2,733; 3.37 MB
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Coal.jpg 360 × 373; 40 KB
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Dortmund coking plant Hansa coal 3.jpg 4,608 × 3,456; 2.04 MB
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Germany coal mine Zeche Prosper Haniel Prosper 2 coal.jpg 2,448 × 3,264; 3.48 MB
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Handvoll Gold.jpg 1,024 × 683; 217 KB
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Houille anzin nord.jpg 2,592 × 1,944; 1.61 MB
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Hulla, carbón.JPG 3,072 × 2,304; 2.48 MB
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Mineral Hulla GDFL003.JPG 1,168 × 876; 49 KB
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Steinkohle aus dem Bergbau.jpg 640 × 360; 65 KB