Dims: 1.1" x 0.9" x 0.4" (2.8 x 2.3 x 1.0 cm)
Wt: 8.8 g
Unknown (likely Mexico)
This small piece consists of a polished Psilomelane stone that has a nearly symmetrical isosceles triangular shape. One can see its metallic gray and black layering very well, and its hand-cut form makes them form some interesting patterns. I have found a few vendors at some of the larger shows that sell this material in rough form and several that sell cut pieces of "black drusy quartz", but almost nobody sells cut stones that show the layering like this one.