mineral

Possible yellow agate or chalcedony bead

Microcrystalline quartz (SiO₂), likely chalcedony; identification is uncertain from the photo

AI-generated identification · may be incorrect

Pale honey-yellow, polished, translucent to opaque, with a waxy luster and no visible crystal faces. Quartz hardness is about 7 Mohs; the bead’s rounded shape and surface finish are human-made.

Identified October 16, 2026More mineral →

Explore Possible yellow agate or chalcedony bead in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Pale honey-yellow, polished, translucent to opaque, with a waxy luster and no visible crystal faces. Quartz hardness is about 7 Mohs; the bead’s rounded shape and surface finish are human-made.

Formation & geological history

If chalcedony, it formed as silica-rich fluids deposited quartz in rock cavities, commonly in volcanic rocks. The bead’s geological age and source cannot be determined from the image.

Uses & applications

Used as jewelry; agate and chalcedony are also used for carvings and decorative objects.

Geological facts

The specimen appears to be a shaped bead strung with other beads, rather than an unworked rock.

Field identification & locations

A close view or simple gemological tests would be needed to distinguish chalcedony from other yellow materials such as glass or resin. Similar chalcedony occurs worldwide, including Brazil, Uruguay, India, and Madagascar.