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.
The Greek Bronze Age or the Early Helladic Era started around 2800 BC and lasted till 1050 BC in Crete while in the Aegean islands it started in 3000 BC. The Bronze Age in Greece is divided into periods such as Helladic I, II.