Pioneer Swirl Furnace Glass Pendant Copper Replacement Agate The cut surfaces reveal both

The cut surfaces reveal both cross-sectional and longitudinal views of the hematite tubes

Adding further character is a subtle lavender hue woven through portions of the agate—a gentle coloration that beautifully complements the silvery metallic luster of the hematite

Keweenaw Agate with a few specs of copper

Fine fortification banding throughout

Copper Replacement Agate Cabochon

Pioneer Swirl Furnace Glass Pendant Copper Replacement Agate The cut surfaces reveal bothThis pendant is made from Pioneer Swirl furnace glass, a historic byproduct of early Michigan industrial smelting operations. The swirling patterns are not decorative additionsthey are the result of molten industrial glass cooling under uncontrolled conditions during early furnace processes. As the material separated and solidified, it formed layered movement patterns that are highly variable and never exactly repeatable. Although commonly referred to