ColdBrewCrystals
Gorgeous Sieber Agate Lingam (Man-made) | Opt E
Gorgeous Sieber Agate Lingam (Man-made) | Opt E
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Siber Agate (Man-Made / Copper Slag)
Siber Agate is a fascinating man-made material with a rich history tied to ancient metallurgy. Despite its name, it is not a natural agate. Instead, Siber Agate is a glassy copper slag — a byproduct of historical copper smelting processes that date back over 1,000 years.
Formed when copper separates from copper ore at extremely high temperatures, this material cooled into a smooth, obsidian-like glass with deep, saturated coloring. True Siber Agate is most commonly found in shades of brown and black, with the highly sought-after blue variety making up only a small percentage of the material.
Historically, Siber Agate originates from old copper smelting sites in Saxony-Anhalt, Germany, where ancient extraction techniques unintentionally produced this beautiful glassy byproduct. Today, it’s admired for its luminous polish, bold color, and unique blend of human history and mineral aesthetics.
✨ Details:
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Man-made material (copper slag byproduct)
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Glassy, obsidian-like appearance
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Deep blue coloration (rare variety)
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Smooth, high-polish finish
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Appreciated for décor, collecting, and intention work
Siber Agate is perfect for those who value striking beauty, historical intrigue, and full transparency about material origin.

