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