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MAGNETITE CRYSTAL

Out of stock
MAGNETITE CRYSTAL
MAGNETITE CRYSTAL
MAGNETITE CRYSTAL
MAGNETITE CRYSTAL
MAGNETITE CRYSTAL
MAGNETITE CRYSTAL
MAGNETITE CRYSTAL

MAGNETITE CRYSTAL

MAGNETITE CRYSTAL

A large single Magnetite Crystal, showing very good crystal shape. An interesting piece for metal or Aussie collectors, hard to come across for sale.  The specimen is mounted on a perspex pad for enhanced display.  We have added a small neo magnet which sticks well.

Location:
Mt Isa, Queensland, Australia.

Dimensions:
4.2cm x 1.8cm x 1.7cm, 40g.

Magnetite:
Fe2+Fe23+O4.

MAGNETITE CRYSTALMAGNETITE CRYSTAL

A large single Magnetite Crystal, showing very good crystal shape.  An interesting piece for metal or Aussie collectors, hard to come across for sale.  The specimen is mounted on a perspex pad for enhanced display.  We have added a small neo magnet which sticks well.

Location:
Mt Isa, Queensland, Australia.

Dimensions:
4.2cm x 1.8cm x 1.7cm, 40g.

Magnetite
Fe2+Fe23+O4.

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.

Magnetite is a natural magnet, hence the name, giving it a very nice distinguishing characteristic. Explaining the magnetism is not easy but here is a go at it. Remember, electricity produces magnetic fields just as magnetism produces electric fields.  Magnetite is a member of the spinel group which has the standard formula A(B)2O4.  The A and B represent usually different metal ions that occupy specific sites in the crystal structure.  In the case of magnetite, Fe3O4, the A metal is Fe +2 and the B metal is Fe +3; two different metal ions in two specific sites.  This arrangement causes a transfer of electrons between the different irons in a structured path or vector.  This electric vector generates the magnetic field.

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Additional information

Weight 150 g
Dimensions 7 × 7 × 8 cm

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