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