Sandstone is defined as a rock which is composed of sand-sized grains of various minerals mostly of uniform size and often are smooth and rounded. Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar.
The Bronze Age Timeline. Timeline Description: The Bronze Age was a period of time between the Stone Age and the Iron Age when bronze was used widely to make tools, weapons, and other implements. Bronze is made when copper is heated and mixed with tin, creating a stronger metal than copper.
During the bronze age between 2100 and 1900 BC this area was invaded by people from the east who introduced an advanced culture to the primitive local people who had been there since Neolithic times. These ancient Hellenes had fortresses as far west as Pylos and as far north as Iolcus in Thessaly.