@field2table: Tri-Flow (or Triple Flow) obsidian is a rare type of mahogany obsidian predominantly found in the Pacific Northwest, specifically at Glass Butte in Lake County, Oregon. It is characterized by multiple, often three, distinct colors or layers—commonly black, mahogany, and clear/golden—formed by magnetite in the lava. It is highly valued for cabochons and knapping. #flintknapping #obsidian #primitiveskills #bushcraft #paleoarchery

Chris

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Tuesday 03 February 2026 12:58:46 GMT