Magnesite
Kaswassergraben, Großreifling, Landl, Liezen District, Styria, Austria
2.5 x 2.1 x 1.5 cm. A fine thumbnail from a historic Austrian locality. This is a sharp, tabular, layered, pseudo-hexagonal, "screw-head" magnesite crystal with moderate to matte lustrous, convex, large side faces and lustrous, concave, edge faces. Ex. Larry Krause specimen.
© Rob Lavinsky & irocks.com