
mineral
Tumbled honey-colored quartz pebble
Quartz, silicon dioxide (SiO₂)
AI-generated identification · may be incorrectTypically Mohs hardness 7, vitreous to waxy luster, and a hexagonal crystal structure; this rounded specimen is translucent tan-brown with a rough, pale patch. The image alone cannot establish whether its color is natural or treated.
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Physical properties
Typically Mohs hardness 7, vitreous to waxy luster, and a hexagonal crystal structure; this rounded specimen is translucent tan-brown with a rough, pale patch. The image alone cannot establish whether its color is natural or treated.
Formation & geological history
Quartz forms in many igneous, metamorphic, and sedimentary settings, commonly crystallizing from silica-rich fluids; its geological age depends on the source deposit. The rounded shape suggests natural water abrasion or tumbling, but the setting is uncertain.
Uses & applications
Quartz is widely used in glassmaking, electronics, abrasives, and jewelry; attractive pebbles are collected or used in crafts.
Geological facts
Quartz is among Earth’s most abundant minerals and has no cleavage, breaking instead with a conchoidal fracture.
Field identification & locations
Look for hardness near 7, glassy luster, and lack of cleavage; quartz occurs worldwide in veins, granites, and river gravels. The surface patch may be a coating or weathered area, so identification is provisional from the photo.
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