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.
BobToday. The Stone Age refers to a long period of time in which the strongest material for tools made by humans was stone. Scientists believe this time lasted from about 2.5 million years ago to only 6,000 years ago, when people learned of metals.That cut-off point was the Bronze Age.5,000 years ago, still in the Stone Age, we have the first evidence of homes made from wood. The wood was reinforced with clay and smaller stones. We have also discovered Stone Age homes made from the bones of Mammoths and tent or tepee-like structures made from animal skins about 10,000 years old.