mineral
Possibly citrine (yellow quartz)
Quartz, SiO₂; variety uncertain from the image
AI-generated identification · may be incorrectA small, pale-yellow translucent fragment with an uneven, roughly prismatic shape. Quartz has Mohs hardness 7, a vitreous luster, and no cleavage; crystal structure is trigonal.
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Physical properties
A small, pale-yellow translucent fragment with an uneven, roughly prismatic shape. Quartz has Mohs hardness 7, a vitreous luster, and no cleavage; crystal structure is trigonal.
Formation & geological history
If quartz, it formed from silica-rich fluids or magma-related processes; natural citrine is uncommon, and yellow quartz is often heat-treated amethyst. Age and origin cannot be determined from the photo.
Uses & applications
Quartz is used in jewelry, abrasives, glassmaking, and electronics; attractive pieces may be collected or set as gemstones.
Geological facts
Color alone cannot distinguish citrine from other yellow minerals or identify whether its color is natural or treated.
Field identification & locations
Check for glassy luster, hardness near 7, and conchoidal fracture; confirm with mineral tests rather than appearance alone. Quartz occurs worldwide in igneous, metamorphic, and sedimentary settings.
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