Magnetite
Magnetite (Fe3O4)
mineral
Category
Igneous Or Mineral
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Magnetite (Lodestone)
Iron(II,III) oxide (Fe3O4)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Magnetite (Octahedral Crystal)
Magnetite (Fe3O4)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Unidentified polished mineral specimen
Indeterminate; likely a pale feldspar or quartz-bearing material
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Pegmatite
Igneous Pegmatite
igneous
Galena
Lead Sulfide (PbS)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Sugilite
KNa2(Fe,Mn,Al)2Li3Si12O30
mineral
Copper Ore
Mixed copper sulfides/oxides in gangue matrix
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Granite
Felsic intrusive igneous rock
igneous
Clear Quartz
SiO2 (Silicon Dioxide)
gemstone
Magnetite / Hematite mix (Iron Ore)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral
Pegmatite
Igneous Pegmatite
igneous
Pegmatite
Igneous Pegmatite
igneous
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
mineral
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Granite
Intrusive Igneous Rock
igneous
Black Beauty Meteorite
NWA 7034 (Northwest Africa 7034)
igneous
Pegmatite (Quartz and Feldspar with Dark Minerals)
Igneous Pegmatite
igneous
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂)
mineral
Small quartz-rich mineral fragment
Quartz (SiO₂), possibly milky or chalcedonic quartz
mineral
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Granite
Intrusive Igneous Rock
igneous
Apatite
Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)
mineral
Granite
Intrusive Igneous Rock
igneous
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Polished gray stone, likely labradorite or gneiss
Indeterminate from image; possibly plagioclase-rich gneiss or labradorite-bearing rock
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Crushed Granite and Basalt
Phaneritic Igneous Rock / Aphanitic Igneous Rock
igneous
Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Blue-gray mineral specimen (possibly sodalite)
Undetermined; appearance may be consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), but the image is insufficient for reliable identification
mineral