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Can obsidian be machined using traditional practices such as on a mill or lathe, or using more specialized tools like what are used for machining glass? Or can obsidian blades only be made by hand?

5 upvotes

5 upvotes

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Can obsidian be machined using traditional practices such as on a mill or lathe, or using more specialized tools like what are used for machining glass? Or can obsidian blades only be made by hand?	5
What conditions produce a predominately deciduous versus coniferous forest?	5