Rock Identifier
Small clear crystal, probably quartz (Quartz (SiO₂), possibly a tiny quartz chip or translucent feldspar fragment) — mineral
mineral

Small clear crystal, probably quartz

Quartz (SiO₂), possibly a tiny quartz chip or translucent feldspar fragment

AI-generated identification · may be incorrect

Colorless to translucent, glassy luster, likely Mohs hardness about 7 if quartz; apparent crystal faces are too small for confident identification. Cleavage is absent in quartz, while feldspar commonly shows cleavage and is softer (Mohs 6).

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Physical properties

Colorless to translucent, glassy luster, likely Mohs hardness about 7 if quartz; apparent crystal faces are too small for confident identification. Cleavage is absent in quartz, while feldspar commonly shows cleavage and is softer (Mohs 6).

Formation & geological history

Most likely a naturally formed quartz grain or crystal fragment from igneous or metamorphic rocks, or an alluvial deposit. Quartz is geologically widespread and may be millions to billions of years old; the image cannot establish its exact age or origin.

Uses & applications

This size has negligible commercial value, though quartz is widely used in glass, ceramics, electronics, abrasives, and decorative specimens. It is not gem-quality based on the photograph.

Geological facts

The specimen appears only a few millimeters across and is resting on a palm, so scale and optical properties are limited. Strong lighting can make ordinary quartz resemble diamond or glass.

Field identification & locations

Test cautiously: quartz should scratch ordinary glass and should not be scratched by a steel knife; inspect for internal fractures, bubbles, or conchoidal breakage. Quartz is plausible near 16.9°N, 99.8°W, where volcanic, metamorphic, and alluvial materials occur.