CON107FF Condor Agate Specimen From Australia Native copper is used to

Native copper is used to form these interesting sculptures

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paleontologist Sue Hendrickson

The chemical formula for Black Tourmaline is NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

CON107FF Condor Agate Specimen From Australia Native copper is used toThis polished Condor Agate shows a crystalline center surrounded by blue gray banded agate with black chromatography, and then translucent agate with dark orange to red, and hints of purple. The back of the nodule is intact with just a few tiny windows. 9. 4cm x 8. 3cm polished face approx. 2" deep 1lb 0. 1oz