Pounamu is several types of hard, durable and highly valued nephrite jade, bowenite, or serpentinite found in New Zealand. Pounamu is the Māori name. The 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 tangi...
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