Serpentinite #43

Description

Serpentinite is a general name for metamorphic rocks dominated by minerals of the serpentine group, most often antigorite or chrysotile. These rocks are products of serpentinization, which is very low-grade, mostly hydrothermal, metamorphism of ultramafic protoliths. This sample was taken near Eden Mills in northern Vermont, USA. It is almost 9 cm acrosss.