 | "A plate of razor-sharp crystals of magnetite, of the classic gunmetal gray, with high metallic luster. The crystals measure to over a centimeter tip to tip. Very little damage on this specimen compared to most of these. 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 electic 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." Location: Cerro Huanaquino, Potosi, Bolivia
Size: 8.25 x 4.75 x 4.5 cm.
Weight: 1.0 lbs.
Quantity Available: 1 Price:
$25.00 |