mineral

Tumbled pink amethyst

Quartz (SiO₂), purple-pink variety colored by trace iron; exact identification is uncertain from the image

AI-generated identification · may be incorrect

Rounded, polished pebble with a pink-purple body and pale veins or inclusions; quartz has Mohs hardness 7, vitreous luster, and a hexagonal crystal structure, with no cleavage. The visible markings may be fractures or mineral inclusions.

Identified September 25, 2026More mineral →

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Physical properties

Formation & geological history

Quartz forms in silica-rich veins and cavities, commonly crystallizing from hydrothermal fluids; the pebble appears mechanically tumbled and polished. Its geological age and source cannot be determined from the photo.

Uses & applications

Commonly sold as a pocket stone, craft material, or inexpensive jewelry and decor stone.

Geological facts

Quartz is abundant worldwide; iron-related impurities can produce purple hues, though color alone cannot confirm amethyst.

Field identification & locations

Look for hardness near 7, glassy luster, and irregular fractures; pink color and white markings are not diagnostic. Similar tumbled quartz is sold from many sources, including Brazil and Uruguay.