mineral
Likely weathered quartz or feldspar grain
Uncertain; possibly quartz (SiO₂) or a feldspar mineral
AI-generated identification · may be incorrectSmall, irregular, pale gray-brown translucent grain with a dull to weakly vitreous luster; likely hardness about 6–7 Mohs, with no clearly visible cleavage or crystal form. The image resolution and surface coating prevent confident identification.
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Physical properties
Small, irregular, pale gray-brown translucent grain with a dull to weakly vitreous luster; likely hardness about 6–7 Mohs, with no clearly visible cleavage or crystal form. The image resolution and surface coating prevent confident identification.
Formation & geological history
Could be a naturally weathered fragment derived from igneous or metamorphic rock; its geological age and source locality cannot be determined visually. Brown coloration may reflect iron-oxide staining or soil weathering.
Uses & applications
As an isolated grain it has negligible commercial value; quartz and feldspar are widely used in glass, ceramics, abrasives, and construction aggregates.
Geological facts
It may also be a tiny altered mineral, slag-like fragment, or other geological material, but it does not show diagnostic features of a gemstone or fossil.
Field identification & locations
Check hardness against glass, inspect for cleavage and transparency with magnification, and test streak and specific gravity; quartz scratches glass and lacks cleavage, while feldspar commonly shows two cleavage directions. Common sources include stream gravel, soil, and weathered granite.
