metamorphic
Greenstone or Metabasalt
Metabasalt / Chlorite Schist
AI-generated identification · may be incorrectHardness 6-7, dark green to grayish-green color, dull to slightly waxy luster, often massive or weakly foliated structure. Contains minerals like chlorite, epidote, and actinolite.
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Physical properties
Hardness 6-7, dark green to grayish-green color, dull to slightly waxy luster, often massive or weakly foliated structure. Contains minerals like chlorite, epidote, and actinolite.
Formation & geological history
Formed by low-grade regional metamorphism of basic igneous rocks (like basalt). Often found in ancient Archean greenstone belts.
Uses & applications
Sometimes used as a decorative stone, carving material, or in local construction.
Geological facts
Greenstone belts are some of the oldest rocks on Earth, providing clues about early tectonic processes.
Field identification & locations
Identified by its distinctive green color, hardness, and association with other metamorphic rocks. Often found smooth and rounded when collected from riverbeds or beaches.
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