mineral
Likely quartz-rich stone, possibly milky quartz or chalcedony
Quartz (SiO₂), possibly microcrystalline chalcedony
AI-generated identification · may be incorrectPale gray-beige, translucent to opaque, with vitreous to waxy luster and irregular fracture; quartz hardness is Mohs 7, with no cleavage and specific gravity about 2.65. The image is not detailed enough to confirm crystal structure or mineral identity.
Identified More mineral →
Explore Likely quartz-rich stone, possibly milky quartz or chalcedony in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Pale gray-beige, translucent to opaque, with vitreous to waxy luster and irregular fracture; quartz hardness is Mohs 7, with no cleavage and specific gravity about 2.65. The image is not detailed enough to confirm crystal structure or mineral identity.
Formation & geological history
Quartz forms in igneous, hydrothermal, and sedimentary environments; chalcedony commonly fills cavities and fractures. Individual pieces could range from ancient crystalline material to relatively young vein or alluvial fragments.
Uses & applications
Common quartz is used in glass, ceramics, abrasives, electronics, and construction aggregate; attractive pieces may be tumbled or used as inexpensive lapidary material.
Geological facts
The rounded shapes suggest naturally weathered or tumbled fragments rather than intact crystals. Surface reflections and the blue background may distort their true color.
Field identification & locations
Look for glass-like luster, hardness sufficient to scratch ordinary glass, and absence of cleavage; acid will not fizz. Common sources include quartz veins, gravel deposits, and geodes worldwide.
