sedimentary

Liesegang Stone (Sandstone with Liesegang Rings)

Clastic sedimentary rock with li-secondary iron oxide mineralization

AI-generated identification · may be incorrect

Hardness: 6-7 (on Mohs scale if quartz-rich), Color: Tan or beige matrix with reddish-brown or purple rings, Luster: Dull/Earthy, Structure: Clastic with concentric chemical banding, SG: 2.2-2.8

Identified June 30, 2026More sedimentary →

Explore Liesegang Stone (Sandstone with Liesegang Rings) in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6-7 (on Mohs scale if quartz-rich), Color: Tan or beige matrix with reddish-brown or purple rings, Luster: Dull/Earthy, Structure: Clastic with concentric chemical banding, SG: 2.2-2.8

Formation & geological history

Formed through the rhythmic precipitation of minerals (usually hematite or limonite) from saturated groundwater within porous sedimentary rock. This chemical reaction occurs over long geological periods within permeable aquifers.

Uses & applications

Used primarily as decorative garden stones, decorative building facades, and as educational specimens for geologists and collectors.

Geological facts

These patterns are named after Raphael E. Liesegang, who first observed the phenomenon in chemicals. In nature, they often create 'picture stones' that resemble landscapes or abstract art.

Field identification & locations

Identify by the characteristic reddish-brown concentric rings or nested bands that appear independent of the rock's bedding. They are common in the Colorado Plateau and Southwest USA.