greenstone (rock)

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  12. greenstone
Scope note
Any of various rocks that are green in color, including altered igneous rocks colored green by feldspar, hornblende, augite, nephrite, or other minerals, or low-grade metamorphic rock containing actinolite, epidote, or albite. Greenstone has been used for carving and construction.
greenstone
Accepted term: 18-Nov-2024