Bone fish hooks were ground until sharp on a stone like this. What do you think needles and fish ... Usually basalt, chert and especially obsidian (the black glassy rock) were used because of the ...

The age of the lines and how they were formed still needs to be verified, but there is a chance this may be one of the oldest symbolic stone carvings made by our human ancestors – at least 100,000 ...

Axe: A chopping or cutting tool where a stone blade is attached to a (typically wooden/bone) handle with edge parallel to the ... Cortex: Weathered surface on the outer layer of a rock. Debitage: Any ...