Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)
cubiccommonOxides
Magnetite
Fe3O4
This image displays sharp, lustrous black magnetite crystals, likely forming octahedral or dodecahedral shapes, characteristic of its isometric crystal system. The specimen exhibits a strong metallic sheen.
Magnetite Physical Properties
Mohs Hardness
6Crystal System
cubicLuster
metallicStreak Color
blackCleavage
noneFracture
conchoidalSpecific Gravity
5.18Colors
black, brownish-blackTransparency
opaqueType Locality
Cerro Huañaquino, Potosí Department, BoliviaMineral Group
OxidesUses
iron ore, magnetic material, heavy media separation, pigmentAssociated Minerals
hematite, pyrite, chalcopyrite, quartz, feldsparRarity
commonGeological Context
Magnetite is a common iron oxide mineral found in a wide range of igneous, metamorphic, and sedimentary rocks. It forms in magmatic segregations, contact metamorphic deposits, hydrothermal veins, and as a detrital mineral in sediments.
