Tri-Flow Obsidian Rough Cut - Glass Butte Pattern with Good Flash Display volcanic pattern The material we have comes

The material we have comes from an old stock estate sale

Weight: Approx 1 lbs 8

This classic Oregon material is increasingly difficult to source

Fluorite collectors

or collector value

Tri-Flow Obsidian Rough Cut - Glass Butte Pattern with Good Flash Display volcanic pattern The material we have comesTri Flow Obsidian Rough Cut Great Tri Flow Pattern with Good Flash Glass Butte Display Piece This stunning Tri Flow Obsidian from Glass Butte, Oregon shows great tri flow pattern with good flash. It is going to make an awesome display piece and should take a good polish. It could also be domed into one giant cabochon. SPECIFICATIONS Material: Natural Tri Flow Obsidian Dimensions: 119mm x 74mm x 17mm (Inches 4. 7" x 2. 9" x 0. 7") Weight: 164 grams (5.