Black Tourmaline, Chlorite Schist, Pyrite
$25.00
Very nice specimen. When using Presidium Gem Indicator for testing, it reads as Tourmaline, Nephrite. The testing in certain areas indicate metal. This indication, the iridescence, locality, shape and streak on the surface and in the center of the stone indicate Columbite/Tantalite.
Origin: Northern Virginia
Origin: Northern Virginia
Very nice specimen. When using Presidium Gem Indicator for testing, it reads as Tourmaline, Nephrite. The testing in certain areas indicate metal. This indication, the iridescence, locality, shape and streak on the surface and in the center of the stone indicate Columbite/Tantalite.
Origin: Northern Virginia
Origin: Northern Virginia
Very nice specimen. When using Presidium Gem Indicator for testing, it reads as Tourmaline, Nephrite. The testing in certain areas indicate metal. This indication, the iridescence, locality, shape and streak on the surface and in the center of the stone indicate Columbite/Tantalite.
Origin: Northern Virginia
Origin: Northern Virginia
