31. Xenoliths containing gabbro are also found.32. Garnet-bearing harzburgite is much less common, found most commonly as xenoliths in kimberlite. 33. It occurs in hornfels and siliceous marble xenoliths within and adjacent to a nepheline syenite intrusion. 34. During this activity, basalt-trachyandesite rocks were ejected, including xenoliths consisting of granite. 35. Peridotite xenoliths originate from of depth. 36. Granodiorite blocks are found as xenoliths . 37. Pyrope is common in peridotite xenoliths from kimberlite pipes, some of which are diamond-bearing. 38. Xenoliths that originated in the Earth's crust include rich metamorphic rocks and felsic intrusive rocks.39. It has a total volume of and consists of crystal rich dacite with large amounts of xenoliths . 40. It is surrounded by a pyroclastic ring ring that contains xenoliths derived from the Paleozoic basement formations.
