4.2" Octahedral Magnetite Crystal Cluster - Potosi District, Bolivia

This is a gorgeous, 4.2" wide cluster of octahedral magnetite crystals that was collected from Cerro Huanaquino within the Potosi District of Bolivia. It comes with an acrylic display stand.

About Magnetite

Magnetite is a naturally occurring iron oxide mineral with the chemical formula Fe₃O₄. It is one of the most magnetic minerals found on Earth, a property that has made it historically significant in the development of early navigation tools like the compass. Magnetite typically forms in igneous and metamorphic rocks, and its crystals often appear as octahedrons or granular masses with a metallic luster and a deep black to dark gray color.

The mineral is composed of both ferrous (Fe²⁺) and ferric (Fe³⁺) iron, giving it its strong magnetic characteristics and distinguishing it from other iron oxides such as hematite. It has a Mohs hardness of 5.5–6.5 and a high specific gravity, making it quite dense. Magnetite is an important iron ore and is widely mined for use in steel production.

Besides its industrial value, magnetite is also of interest to collectors due to its striking appearance and magnetic properties. Large or well-formed octahedral crystals are particularly sought after.


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DETAILS
SPECIES
Magnetite
LOCATION
Cerro Huanaquino, Potosi District, Bolivia
SIZE
4.2 x 2.6"
CATEGORY
ITEM
#129096