This is Very Rare Top Quality Leland Blue Slag Glass. It is used to make high end jewelry and sculptures. This is the one you want! Lots of swirls blue shades! Perfect art sculpture display! Or use in lapidary or glassmaking!
Slag is a byproduct of the smelting process: raw ore is heated, and iron ore is separated from various natural impurities. When those impurities cool, the result is stone-like slag. Leland Blue, specifically, is the mix of blue glass with other chemicals — but this varying chemical medley can also cause the slag to appear purple, gray, or a shade of green. Today, people find this slag material on the shores of Leland, Michigan beaches.
Weight: 1 lb 8.25 oz or 688g
Size: 4.25 x 3.25 in x 3 in