Greenstone
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Greenstone is a name given to several different types of minerals and rocks.
- Pounamu, a form of green nephrite jade found in the South Island of New Zealand
- Chlorastrolite, found in the Keewenaw Peninsula of Michigan and Isle Royale in the US
- Elvan, a quartz-porphyry found in Cornwall, UK
- Greensand, glauconite bearing sandstone and a geologic formation in the UK
- Greenschist, metamorphosed mafic volcanic rock and a metamorphic facies
- Greenstone (archaeology), a type of stone used by early cultures, particularly in Mesoamerica
- Greenstone belt, Archean and Proterozoic volcanic–sedimentary rock sequences
Greenstone may also be:
- Greenstone, Ontario, a municipality in Canada
- Greenstone (software), an open source digital library software package
- The Greenstone Building, a Canadian federal government office building in Yellowknife
- Greenstone River, river in the Otago/Southland region, New Zealand
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