title: Greenstone
text: # Greenstone
  
  Greenstone may refer to:
  
  ## Geology
  
  * Greenstone (archaeology), various types of stone used by early cultures, covering jade and similar stones
  * Greenstone belt, Archean and Proterozoic volcanic–sedimentary rock sequences
  * Isle Royale greenstone Chlorastrolite, found in the Keweenaw Peninsula of Michigan and Isle Royale in the US
  * Pounamu (New Zealand jade/greenstone), several types of hard and durable stone found in southern New Zealand
  * Greensand (geology), glauconite bearing sandstone and a geologic formation in the UK
  * Greenschist, metamorphosed mafic volcanic rock and a metamorphic facies
  * Elvan, a quartz-porphyry found in Cornwall, UK
  
  ## Places
  
  * Greenstone, Ontario, a municipality in Canada
  * Greenstone, Queensland, a locality in the Moreton Bay Region, Australia
  * Greenstone Hill, a suburb of Johannesburg, South Africa
  * Greenstone Point, a high rock spur along the north front of Jones Mountains, Antarctica
  * Greenstone River, river in the Otago/Southland region, New Zealand
  
  ## Other
  
  * Greenstone (software), an open source digital library software package
  * Greenstone Building, a Canadian government building in Yellowknife
  * Greenstone TV, a television production company, New Zealand
  * Greenstone, the generics division of Pfizer
  