Magnetita
Magnetita is a mineral with formula . This specimen comes from Mina Santa Justa, Jerez de los Caballeros, Badajoz, España.
Description
A black plate densely covered with dark, magnetic crystals on ferruginous clay matrix.
History of this specimen
Mislabelled as from Burguillos, but I know it is typical magnetite from Jerez.
About Magnetita
Magnetite is an iron oxide, formula Fe₃O₄, and one of the most important iron minerals. It is recognised by its black colour, metallic to submetallic lustre, and strong natural magnetism.
About the locality
Mine belonging to the Coto Minero San Guillermo, where iron ore was extracted. The principal mineral present is magnetite. It was active between 1907 and 1978.
Technical data
- Catalogue No.
- 0490
- Internal reference
- T0189
- Name
- Magnetita
- Associations
- Fe₃O₄
- District / Municipality
- Mina Santa Justa
- Province
- Jerez de los Caballeros
- Region
- Badajoz
- Country
- España
- Size (cm)
- 7.5 x 5 x 1.5
- Weight
- 121.5 g
- Etymology
- Named after the ancient region of Magnesia in Thessaly (Greece), where, according to legend, a shepherd named Magnes discovered that the nails of his sandals adhered to these rocks.
- Quality
- Buena
- Value trend
- Estable
Related specimens
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- Abernathyita — España
- Abernathyita — España
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- Aerenita — España
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- Ágatha — Brasil
- Analcima — España