Tokangawhā / Split Apple Rock is a geological rock formation in Tasman Bay / Te Tai-o-Aorere off the northern coast of the South Island of New Zealand. Made of granite from the cretaceous, it is in the shape of an apple which has been cut in half. The cleft to produce two sides of the 'apple' was a naturally occurring joint. Joints occur commonly in granite and are planes of weakness that rain and waves exploit. The traditional Maori myth for the formation describes two gods breaking apart the rock.