
mineral
Likely iron-stained quartz or feldspar fragment
Quartz (SiO₂) or potassium feldspar (KAlSi₃O₈), uncertain from image
AI-generated identification · may be incorrectTiny angular, orange-brown translucent fragment with a dull to vitreous luster; likely Mohs hardness 6–7, with indistinct cleavage if quartz or two cleavages if feldspar. The color probably comes from iron-oxide staining or weathering.
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Physical properties
Tiny angular, orange-brown translucent fragment with a dull to vitreous luster; likely Mohs hardness 6–7, with indistinct cleavage if quartz or two cleavages if feldspar. The color probably comes from iron-oxide staining or weathering.
Formation & geological history
Likely a weathered mineral grain derived from an igneous or metamorphic rock; its geological age cannot be determined from the photograph. Such grains commonly accumulate in soil, sediment, and decomposed bedrock.
Uses & applications
As an isolated grain it has negligible commercial value; quartz and feldspar are major industrial materials used in glass, ceramics, abrasives, and construction aggregates.
Geological facts
The specimen is too small and low-resolution for confident identification. A glass-scratch test, streak test, and examination for cleavage under magnification would help distinguish quartz from feldspar.
Field identification & locations
Commonly found in soils and stream sediments worldwide, especially in granitic terrains. Quartz has no cleavage and scratches glass; feldspar shows flat cleavage surfaces and is slightly softer.
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