mineral

Light-colored quartz-rich stone, possibly milky quartz

Quartz (SiO₂), provisional identification

AI-generated identification · may be incorrect

Pale cream to translucent white, with a dull-to-glassy luster and irregular broken surfaces. Quartz has Mohs hardness 7, no cleavage, hexagonal crystal structure, and specific gravity about 2.65; the rounded shape may result from weathering or tumbling.

Identified August 11, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed in a quartz vein or silica-rich igneous/metamorphic rock, then transported and naturally rounded. Quartz is geologically widespread and may range from Precambrian to recent deposits; the image cannot establish age.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and construction aggregate. Attractive translucent pieces may be collected, but this specimen appears low-grade and unlikely to have gemstone value.

Geological facts

The white appearance comes from microscopic fluid inclusions, fractures, or fine-grained texture. It could also be a pale quartzite or another light silicate rock rather than a single mineral.

Field identification & locations

The regional setting near 17.2°N, 89.1°W in northern Guatemala/southern Belize can contain transported quartz-bearing gravel. Test with a steel file or knife: quartz should resist scratching; it will scratch ordinary glass, unlike calcite, which is softer and reacts with dilute acid.