metamorphic
Quartz-rich rock, likely milky quartz vein material
Quartz (SiO₂), possibly with feldspar and mica; exact identification is uncertain from the image
AI-generated identification · may be incorrectPale cream to white, uneven and granular with a dull to vitreous luster. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; the specimen’s texture suggests mixed minerals.
Identified More metamorphic →
Explore Quartz-rich rock, likely milky quartz vein material in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Pale cream to white, uneven and granular with a dull to vitreous luster. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65; the specimen’s texture suggests mixed minerals.
Formation & geological history
Could be quartz-rich vein material formed when silica-bearing fluids filled fractures, later exposed by erosion. Its age and precise formation setting cannot be determined from appearance alone.
Uses & applications
Quartz is used in glass, electronics, abrasives, and decorative stone; this small rough piece is mainly suitable for collecting.
Geological facts
Quartz is one of Earth’s most abundant minerals and commonly occurs in veins cutting many rock types.
Field identification & locations
Look for glassy, hard surfaces and irregular fracture rather than cleavage; a scratch test against glass can help confirm quartz. Similar material is found worldwide, but a hand specimen alone cannot establish a specific locality.
More like this
