Originally posted by Ragin'
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New Cold Steel (Plastic) Broadhead [emoji849]
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Found this on obsidian
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. ... Obsidian is hard and brittle; it therefore fractures with very sharp edges, which were used in the past in cutting and piercing tools, and it has been used experimentally as surgical scalpel blades.
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