Rocks

brysmallfry
Mind Map by brysmallfry, updated more than 1 year ago
brysmallfry
Created by brysmallfry over 6 years ago
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rocks

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Rocks
  1. Metamorphic
    1. Slate
      1. is a fined grained metamorphic rock.
      2. Quartzite
        1. is a coarse-grained metamorphic rock derived from sandstone.
        2. Marble
          1. is a metamorphic rock that comes from metamorphosed limestone or dolomite.
          2. Phyllite
            1. is a fined grained metamorphic rock.
            2. Schist
              1. is a coarse grained metamorphic rock.
              2. Gneiss
                1. is a medium to coarse grained metamorphic rock.
              3. Sedimentary
                1. Breccia
                  1. is made up of angular pebbles cemented together.
                  2. Conglomerate
                    1. is made up of rounded pebbles cemented together.
                    2. Siltstone
                      1. is made from silt particles cemented together.
                      2. Shale
                        1. is made from silt particles cemented together. It is similar to siltstone but with even finer grain size.
                        2. Sandstone
                          1. is sand grains cemented together into solid stone.
                        3. Igneous
                          1. Obsidian
                            1. is volcanic glass without gas bubbles.
                            2. Pegmatite
                              1. is very coarsely crystallised.
                              2. Basalt
                                1. is a fine-grained igneous rock rich in iron that gives it a black to brown colour.
                                2. Pumice
                                  1. is volcanic glass filled with gas bubble holes.
                                  2. Granite
                                    1. is a coarse-grained igneous rock often with a pink to reddish colour.
                                    2. Porphyry
                                      1. simply refers to the two distinctly different grain sizes present in an igneous rock.
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