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MAGNETITE CRYSTAL CLUSTER

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MAGNETITE CRYSTAL CLUSTER
MAGNETITE CRYSTAL CLUSTER
MAGNETITE CRYSTAL CLUSTER
MAGNETITE CRYSTAL CLUSTER
MAGNETITE CRYSTAL CLUSTER
MAGNETITE CRYSTAL CLUSTER

MAGNETITE CRYSTAL CLUSTER

MAGNETITE CRYSTAL CLUSTER

Magnetite Crystal Cluster, showing Octahedral Crystal shape.  An interesting piece for metal specimen collectors.

Location:
Potosi Dept, Bolivia.

Dimensions:
10.6cm x 8.7cm x 3.3cm, 473g.

Magnetite:  Fe2+Fe23+O4.

 

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MAGNETITE CRYSTAL CLUSTERMAGNETITE CRYSTAL CLUSTER

Magnetite Crystal Cluster, showing Octahedral Crystal shape.  An interesting piece for metal specimen collectors.

Location:
Potosi Dept, Bolivia.

Dimensions:
10.6cm x 8.7cm x 3.3cm, 473g.

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.

Additional information

Weight 550 g
Dimensions 14 × 10 × 5 cm