Sieber Agate

 

Sieber Agate 

Although called “Agate” Sieber Agate is formed when copper is being extracted from copper ore and is not actually an Agate at all.

The process is over 1400 years old, leaving a glassy material that is very deep blue.
Sieber Agate is found in Siebertal, Harz, Germany.  It has very similar characteristics to Obsidian.
This is quite a rare stone and would be a great addition to your crystal collection.

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