Psilomelane in balck agate

Weight: 8.20 ct
Size: 15.1 x 10.2 x 6.1 mm

€25,00

Black agate cabochon, color due to submicroscopic psilomelane inclusions in chalcedony.
Fantastic sample for rare gems colectors!

Color: black with banded texture
Cut: oval cabochon
Treatments: not treated in any way
Origin: Brazil