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New Sourcing Technique Detects Obsidian In Seconds
2013-09-10 09:27:02

Obsidian is a naturally occurring volcanic glass with a smooth, hard surface. Obsidian is far sharper than a surgical scalpel when fractured, making it a highly desirable raw material for crafting stone tools for almost all of human history.


Word of the Day
metagrabolized
  • totally perplexed and mixed up.
The word 'metagrabolized' is also spelled 'metagrobolized'.
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