Description
The iron content of those ancient sediments was exposed to oxygen as the sea retreated
The pyramid form is cut and polished by hand
dark blue is some of the most saturated color in the mineral kingdom
mahogany obsidian is associated with grounding and with anchoring one's focus in the present
the color and fine grain texture of the original sandstone preserved in the finished form
Black Tourmaline Sphere Polished Size:2"D The iron content of thoseA perfect black sphereopaque, cool, dense in the hand, the mineral's striations visible as faint lines in direct light. Black Tourmaline (Schorl) is a boron silicate mineral in the Tourmaline group, Mohs 77. 5, its black color produced by high iron content in the complex crystal structure. Polishing a sphere from Tourmaline requires navigating the mineral's natural cleavage planes; the finished sphere reveals the stone's internal striations across its