Sandstone vs Arkose Characteristics Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Sandstone vs Arkose characteristics assist us to distinguish and recognize rocks.
The first such period is referred to as the Paleolithic, or Old Stone Age. The Old Stone Age began about 2 million years ago with the development of the first tools by Homo habilis and lasted until around 12,000 years ago.
Prehistoric / Archaeological Periods The Stone Age Archaeologists and historians place the Stone Age as that period of human development when most of the tools used by human beings were made from stone. The evidence available to us currently shows that while the this phase of early human development took place in different parts of the globe, the dates for the Stone Age was different for different parts of the world. It varies depending on the dates assigned to stone implements discovered in a region.