metamorphic
Quartz vein in host rock
Milky quartz (SiO₂), with iron-oxide staining; host rock is not clearly identifiable
AI-generated identification · may be incorrectQuartz has Mohs hardness 7, a white to translucent color, glassy luster, and trigonal crystal structure; it lacks cleavage and breaks conchoidally. Brown staining is likely iron oxides, but the image does not show enough detail to identify the host rock confidently.
Identified More metamorphic →
Explore Quartz vein in host rock in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Quartz has Mohs hardness 7, a white to translucent color, glassy luster, and trigonal crystal structure; it lacks cleavage and breaks conchoidally. Brown staining is likely iron oxides, but the image does not show enough detail to identify the host rock confidently.
Formation & geological history
Likely quartz deposited from silica-rich fluids in fractures, then stained by iron-bearing fluids or weathering. The age and precise setting cannot be determined from the image.
Uses & applications
Quartz is used in glass, electronics, and decorative stone; attractive vein specimens may be collected or used as display pieces.
Geological facts
Milky appearance results from microscopic fluid inclusions or fractures that scatter light.
Field identification & locations
Look for hard, glassy white material that scratches glass and has no cleavage; iron staining commonly produces rusty-brown patches. Quartz veins occur in many rock types worldwide.
More like this
