Rock Identifier
Mixed polished gemstone bead bracelet, likely ocean jasper, agate, and quartz varieties (Mostly microcrystalline quartz (SiO₂), with possible chalcedony, jasper, and minor feldspar or other inclusions) — gemstone
gemstone

Mixed polished gemstone bead bracelet, likely ocean jasper, agate, and quartz varieties

Mostly microcrystalline quartz (SiO₂), with possible chalcedony, jasper, and minor feldspar or other inclusions

AI-generated identification · may be incorrect

Polished spherical beads show green, blue, cream, pink, gray, and brown mottling, translucency, and occasional dendritic or mineral inclusions; quartz-group material has Mohs hardness about 6.5–7, vitreous to waxy luster, cryptocrystalline structure, and no visible cleavage.

Identified More gemstone →
Explore Mixed polished gemstone bead bracelet, likely ocean jasper, agate, and quartz varieties in the encyclopedia →

Identify your own rocks.

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

Physical properties

Polished spherical beads show green, blue, cream, pink, gray, and brown mottling, translucency, and occasional dendritic or mineral inclusions; quartz-group material has Mohs hardness about 6.5–7, vitreous to waxy luster, cryptocrystalline structure, and no visible cleavage.

Formation & geological history

These are natural silica-rich lapidary materials formed by groundwater deposition, volcanic cavities, or silica replacement in rock; ages vary widely, commonly from Paleozoic to Cenozoic deposits. Their exact identities cannot be confirmed from the photograph alone.

Uses & applications

Used for jewelry, ornaments, and collecting; value depends on confirmed material, color, pattern, polish, and workmanship.

Geological facts

The bracelet appears mixed rather than a single uniform mineral, with several beads resembling ocean jasper or orbicular jasper and others resembling agate or moss agate.

Field identification & locations

Identify by translucency, waxy/vitreous luster, hardness, and natural patterning; a streak, loupe examination, and gemological testing can distinguish dyed or composite beads. Similar materials occur in Madagascar, Brazil, Uruguay, India, and Mexico.