Image 1 BAukDM01.jpg Ocular coal of the mine Westende in Duisburg-Meiderich (germany), seam La Girondelle . Exhibit in the german mining museum of Bochum. Supposed cause: "Pressure phenomena in coal". This explanation is inadequate and does not explain the complexity of the structure. The piece contains a bigger one and a smaller algae seaweed ball with dry tears. These are embedded and outwardly penetrated with layered alga seaweed. As expected this coal also contains many chondrums, here on the right most clearly. Photo date: 1992 |
In the piece of Duisburg-Meiderich the following phycodic signs can be proved: Ball growth in the width of some inches Shell structure by growth phases Radial beams in ball shells Typical, restricted and diminished tears Chondrums in accumulation, this are in coal and rocks signs for beginning phycodic growth Layered surrounding areas, on the right in clearest ones Penetrating of radial and layered structures outside in spheres |
More pictures of ocular coal Deutsches Bergbau-Museum (German mining-museum) Bochum |
Spheric coal of Fuenfkirchen Hungary Deutsches Bergbau-Museum (German mining-museum) Bochum |