Guide
Magnetite specimens for sale
84 for sale · $60–$10,000 USD
183 in the gallery
Magnetite is an iron oxide mineral with the chemical formula Fe3O4 that crystallizes in the cubic system. It typically forms octahedral or granular habits with a metallic to submetallic lustre and a black to steel-gray colour. Magnetic properties are a hallmark, and specimens can display strong magnetic attraction, which adds a distinctive feature for field identification and display. Notable specimens come from classic magnetic deposits and coastal lag deposits, with significant collections rooted in localities across the United States, Argentina, Bolivia, China, and Pakistan.
- Formula
- Fe2+Fe3+2O4
- Rarity
- Abundant
- Stability
- Stable
- Collector interest
- Moderate Interest
- Classification notes
- Oxide mineral; Spinel group (AB<sub>2</sub>O<sub>4</sub>) - Strunz 04.DB
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About Magnetite
Collectors prize Magnetite for its historical and practical appeal—well-formed crystals, large tabular or octahedral forms, and streaks of iron luster. It is a durable mineral that often accompanies other iron oxides and sulfides in gangue, and high-quality crystals can exhibit well-defined faces and clean edges. Its magnetic character makes it memorable as a specimen, while its abundance ensures accessible examples for hobbyists and seasoned collectors alike.
