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.
The Stone Age is a broad prehistoric period during which stone was widely used to make implements with a sharp edge, a point, or a percussion surface. The period lasted roughly 3.4 million years, and ended between 6000 BCE and 2000 BCE with the advent of metalworking.Stone Age artifacts include tools used by modern humans and by their predecessor species in the genus Homo, as well as the earlier partly contemporaneous genera Australopithecus and Paranthropus.tone Age artifacts include tools used by modern humans and by their predecessor species in the genus Homo, as well as the earlier partly contemporaneous genera Australopithecus and Paranthropus.