MAGNETITE OCTAHEDRAL CRYSTAL
An awesome Magnetite Octahedral Crystal. A naturally magnetic metal crystal, showing excellent crystal shape. Great for the collector of metals, crystals or minerals. The specimen is mounted on a perspex pad for enhanced display. We have added a small neo magnet to demonstrate the magnetism. A super Aussie mineral specimen for the collector.
Yinnietharra, Western Australia.
1.8cm x 1.8cm x 2.3cm, 17g.
Magnetite is an important iron ore, along with hematite. Nanoinclusions of magnetite crystals cause the iridescence of Rainbow Obsidian (Nadin, 2007). Extremely thin layers of 200-nm octahedral crystals of magnetite give some basalt surfaces an iridescent sheen.