a method of dating obsidian artifacts or debitage by calculating how long it has taken to produce a given thickness of a hydration layer within such matter.
Why Is The Date 11/11 Special?11 is a very odd number and has been subject to much interpretation over the ages. So why is it so special?
Origin of obsidian dating
First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019