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such as fuchsite and green chromiferous muscovite mica
slide the gauge open and fit the item in securely
No two are exactly alike
veins and brecciated patterns
Its bright green coloration is due to traces of chromium
Sieber Agate 4mm Round AA Grade - 15-16 Inch Size_10-13x14-19mm such as fuchsite and greenSieber agate is not a true agate but rather a glassy, dark blue grey or green copper slag that formed during ancient copper smelting in Germany, specifically from the Siebertal area. This historical "ancient slag" has a naturally swirling, intricate appearance resembling agate due to silica and mineral inclusions from the smelting process. It is a rare and collectible material known for its lapidary qualities, similar to obsidian, and is sometimes
