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www.reference.com/topic/Oldowan-Tools
Oldowan tools are crude stone tools formed by pounding (or knapping) flakes away from a pebble (or cobble) of flint, chert (chalcedony), jasper, obsidian, and even coarser-grained quartzite
www.life123.com/question/Fracture-Minerals
What type of fracture has cured surfaces (minerals)? ... What is fracture in minerals? ... MRSA in the Bone
www.life123.com/question/Mineral-Fractures
What type of fracture has cured surfaces (minerals)? ... What is fracture in minerals? ... Fracture refers to the appearance of the freshly broken mineral.
www.ehow.com/how_8639124_make-bone-awl.html
Create two grooves in the long bone to measure out the ideal length for your bone awl. Move the chert fragment back and forth in each groove until there is a ...
www.fallsoftheohio.org/Bone-LikePseudofossils.html
Feb 22, 2010 ... Some are elongated pieces of chert (quartz). Sometimes water sculpts soft sedimentary rock into bone-shapes. To determine if your rock is ...
www.nd.edu/~ikuijt/Ireland/Sites/sbergin/moogtext.htm
House 1 contained chert, animal bone and fire cracked rock. House 3 contained more animal bone, chert and a blue glass bead. Excavators also found that the ...
www.nysm.nysed.gov/IroquoisVillage/villagefour.html
Most chert knives may have originally been pointed at both ends: one pointed end inserted into a handle of wood, bone, or antler, the other end serving as the ...
wiki.answers.com/Q/Early_humans_made_arrowheads_from_wh... wiki.answers.com/Q/Early_humans_made_arrowheads_from_which_rock
Arrowheads can be made of metal, bone, chert and flint (sedimentary rocks), or obsidian (volcanic glass). Can a rock arrowhead be made with machinery?
www.indiana.edu/~archaeo/bone_bank/collections.htm
Analysis examined temporal change at Bone Bank and comparison with ... Among the widely exchanged lithic materials used for hoes and other chert tools, ...
www.uiowa.edu/~osa/learn/ancient/flint.htm
Chert and flint are silica-rich rocks found throughout the Midwest in limestone ... These rock types, when struck with another rock, piece of antler, or bone, will ...
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