![28.0 Kimberlite. Kimberley, South Africa. The rock is basically a breccia of angular fragments of various rock types in a serpentine-calcite matrix containing a variety of other (not visible) minerals. Vesicles are abundant. [Scale is standard GSA scale with cm divisions.]](../28.0.JPG)
28.0 Kimberlite. Kimberley, South Africa. The rock is basically a breccia of angular fragments of various rock types in a serpentine-calcite matrix containing a variety of other (not visible) minerals. Vesicles are abundant. [Scale is standard GSA scale with cm divisions.]