metamorphic
Vein-filled Greenstone
Metabasalt with quartz-epidote vein
AI-generated identification · may be incorrectHardness of 5-7 on Mohs scale, dark green color with a lighter contrasting mineral vein, vitreous to dull luster, massive crystal structure.
Identified More metamorphic →
Explore Vein-filled Greenstone in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 5-7 on Mohs scale, dark green color with a lighter contrasting mineral vein, vitreous to dull luster, massive crystal structure.
Formation & geological history
Formed through low-grade regional metamorphism of submarine basaltic lava, subsequently fractured and healed by hydrothermal mineral fluids.
Uses & applications
Used primarily as a decorative landscape stone, lapidary material for cabochons, and geological educational specimens.
Geological facts
The contrasting band represents hydrothermal fluid injection filling a tension fracture long after the host rock solidified.
Field identification & locations
Identify in the field by its dense, fine-grained green matrix crossed by distinct lighter mineral veins. Commonly found in ancient greenstone belts and glacial drift.
More like this
