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Monday, November 11, 2013

Obsidian Lava Mystery Solved

From HeritageDaily:

Obsidian from lava flows is strewn over many archaeological sites worldwide, as it was long a highly-prized and traded material used for knives, arrowheads and cutting tools. It still has surgical applications due to its remarkably sharp cutting edges.

Read more:
Unique sighting of lava solves mystery



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