Bituminous coal
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https://term.museum-digital.de/md-de/tag/1195
- Note
- Bituminous coal, or black coal, is a type of coal containing a tar-like substance called bitumen or asphalt. Its coloration can be black or sometimes dark brown; often there are well-defined bands of bright and dull material within the seams. It is typically hard but friable. Its quality is ranked higher than lignite and sub-bituminous coal, but lesser than anthracite. It is the most abundant rank of coal, with deposits found around the world, often in rocks of Carboniferous age. Bituminous coal is formed from sub-bituminous coal that is buried deeply enough to be heated to 85 °C (185 °F) or higher.
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Notgeldschein des Steinkohlenwerks Plötz GmbH
Notgeldschein des...
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Image: Kreismuseum Bitterfeld - CC BY-NC-SA -
Mandat Wegen Entdeckung derer im Landes befindlichen Stein=Kohlen=Brüche/Und wie sich bey deren Aufnahme und Fortbau zu verhalten.
Das vorliegende Mandat...
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Image: Museum Weißenfels - Schloss Neu-Augustusburg - CC BY-NC-SA -
Unter den Kränen
Werkgruppe Magistrat: "Die...
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Image: Kulturstiftung Sachsen-Anhalt - CC BY-NC-SA -
Modell des Tiefbauschachtes II in Zwickau
Das Modell diente...
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Image: Bergbaumuseum Oelsnitz / Erzgebirge - CC BY-NC-ND -
Karte
"Geologische Specialkarte des...
Object information
Image: Bergbaumuseum Oelsnitz/Erzgebirge - CC BY-NC-SA
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