Jacobsite is a manganese iron oxide mineral. It is a magnetite spinel. It was first described in 1869 and named for the location of Jakobsberg, Sweden. References * Mindat with location data Retrieved from "http://en.wikipedia.org/" |
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Jacobsite is a manganese iron oxide mineral. It is a magnetite spinel. It was first described in 1869 and named for the location of Jakobsberg, Sweden. References * Mindat with location data Retrieved from "http://en.wikipedia.org/" |
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