sedimentary

Jasper with Hematite

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)

AI-generated identification · may be incorrect

Hardness: 6.5-7 (Mohs scale), Color: Red, brown, and black, Luster: Dull to waxy, Crystal Structure: Microcrystalline/Trigonal, Specific Gravity: 2.6-2.9

Hardness: 6

Identified July 16, 2026More sedimentary →

Explore Jasper with Hematite in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6.5-7 (Mohs scale), Color: Red, brown, and black, Luster: Dull to waxy, Crystal Structure: Microcrystalline/Trigonal, Specific Gravity: 2.6-2.9

Formation & geological history

Formed from silica-rich fluids filtering through sedimentary deposits, often associated with iron-rich environments. The coloration is due to the presence of hematite or other iron oxides during the crystallization process.

Uses & applications

Used primarily for ornamental purposes, lapidary art, jewelry, and as a collector's specimen. In industry, high-purity silica is used for various technological applications.

Geological facts

Jasper is a variety of chalcedony that is opaque due to high mineral impurities. The red coloring in this specific specimen is a classic indicator of iron inclusions reaching up to 20% of the stone's composition.

Field identification & locations

Identify by its opacity, hardness (will scratch glass), and conchoidal fracture. Check for the banded or mottled patterns of rust-red and dark grey. It is commonly found in areas of volcanic activity or ancient seabed deposits.