mineral

Iron-stained Quartz Pebble

Crystalline Silicon Dioxide (SiO2) with Hematite/Limonite staining

Hardness: 7 (Mohs), Color: Translucent to opaque with yellow, orange, and brown rust-like stains, Luster: Vitreous to greasy, Crystal structure: Trigonal (often worn smooth), Cleavage: None (conchoidal fracture).

Identified May 28, 2026More mineral →

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Physical properties

Formation & geological history

Formed from hydrothermal veins or within igneous and metamorphic rocks. This specific specimen has been shaped by fluvial or alluvial erosion, carrying it from its source and smoothing it over time. Iron oxides leach into surface fractures, creating the warm coloration.

Uses & applications

Used extensively in the glass industry, as an abrasive, and in construction. Smooth pebbles are often used in decorative landscaping, succulent terrariums, and as low-cost pocket stones for collectors.

Geological facts

Quartz is the second most abundant mineral in Earth's continental crust. The orange and yellow coloring is often referred to as 'Golden Healer' in metaphysical communities, though geologically it is simply iron staining.

Field identification & locations

Identify by its hardness (it will scratch glass) and lack of cleavage. Look for it in riverbeds, beaches, and gravel pits. It is often the most durable remainder of weathered granite.

Other mineral specimens

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Biotite Schist

Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]

metamorphic

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral