Pounamu Pounamu Pounamu refers to several types of hard, durable and highly valued nephrite jade, bowenite, or serpentinite stone found in southern New Zealand. Pounamu is the Māori name. These rocks are also generically known as "greenstone" in New Zealand English. There are two systems for classifying pounamu. Geologically, the rock falls into the three categories named above, but Māori classify pounamu by appearance. The main classifications are "kawakawa", "kahurangi", "īnanga", and "tangiwai". The first three are nephrite jade, while "tangiwai" is a form of bowenite. In modern usage "pounamu" almost always refers to nephrite jade. Pounamu is generally found in
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