mineral

Tiny translucent mineral grain, likely quartz

Quartz (silicon dioxide, SiO₂), provisional identification

AI-generated identification · may be incorrect

The photograph shows a very small, pale translucent grain with a bright reflective point; its shape and surface details are too limited for certainty. Quartz has Mohs hardness 7, vitreous luster, no cleavage, conchoidal fracture, and specific gravity about 2.65.

Identified September 15, 2026More mineral →

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Physical properties

Formation & geological history

Quartz commonly crystallizes from hydrothermal fluids and igneous rocks, or accumulates as resistant grains in sediments. It is abundant in rocks of many ages, including those around coastal Guerrero, Mexico.

Uses & applications

Common quartz is used in glass, ceramics, abrasives, electronics, and construction; clear attractive grains may be collected but this tiny piece has negligible market value, typically under $1.

Geological facts

The sparkle may simply be a reflective crystal face or fracture surface, not necessarily precious material. A steel knife should not scratch quartz, while quartz can scratch ordinary glass.

Field identification & locations

Likely regional alternatives include quartz, feldspar, or mica; mica would be softer and flake-like. Confirm with a close macro photo, hardness test, streak, and whether it breaks into thin sheets; identification from this image is low confidence.