100. gm Natural Octahedron Magnetite Crystals With good luster and Terminations | eBay
Magnetite & Lodestone | Mineral Photos, Uses, Properties
Magnetite & Lodestone | Mineral Photos, Uses, Properties
File:Magnetite-k326a.jpg - Wikimedia Commons
Franklinite with magnetite from Franklin, New Jersey, USA. Franklinite and magnetite are both members of the spinel group. Magnetite is iron oxide, and franklinite is primarily a zinc-iron oxide. Magnetite is common