Greenstone
From Wikipedia, the free encyclopedia
Greenstone is a name given to several different types of mineral.
- Greenstone is a form of green nephrite jade found in New Zealand and Australia.
- Greenstone belts are mixed sedimentary and volcanic rock sequences that often contain minable concentrations of gold, silver, copper, zinc and lead.
- Chlorastrolite is also referred to as greenstone, Lake Superior greenstone, or Isle Royale greenstone. Chlorastrolite as Isle Royale greenstone is the state gemstone of Michigan.
- Greenstone is also used colloquially to refer to green colored metamorphic rocks or greenschist; also a grade of metamorphism.
Greenstone as a geographic location.
- Greenstone is a town in Ontario, Canada.
Greenstone as the common name for a digital library software.
- Greenstone Digital Library is a popular open source digital library software developed at the University of Waikato, New Zealand -- New Zealand Digital Library Project http://www.greenstone.org/cgi-bin/library. The symbol associated with the software is a Māori greenstone (jade) adze.
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