Magnetite (Lodestone)
Magnetite (Fe3O4)
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Magnetite (Lodestone)
Magnetite (Fe3O4)
Milky Quartz
Quartz (SiO2)
Lapis Lazuli
Lapis Lazuli (Rock composed mainly of lazurite, calcite, and pyrite)
Graphite
Graphite (C)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Magnetite (potentially Hematite)
Magnetite (Fe₃O₄)
Ruby (Corundum)
Aluminum oxide (Al2O3) with Chromium traces
Blue Calcite
Calcium Carbonate (CaCO3)
Magnetite-rich Iron Ore
Magnetite (Fe3O4)
Garnet
Almandine-Pyrope group, X3Y2(SiO4)3
Quartz pebble with iron staining
Silicon dioxide (SiO2) with iron oxide inclusions
Quartz pebble
Silicon dioxide (SiO2)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
Green Aventurine
SiO2
Peacock Ore
Bornite (Cu5FeS4)
Likely clear quartz pebble or glassy quartz fragment
Quartz (silicon dioxide, SiO₂)
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Schist
Schist (metamorphic rock)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Tumbled quartz-rich pebble
Microcrystalline quartz (SiO₂), possibly milky quartz or chalcedony
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Cloudy Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Quartzite with Mica / Gneiss Pebble
Metamorphic Rock (Quartz-Feldspar-Mica aggregate)
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Garnet (Almandine/Pyrope series)
Garnet Group - X3Y2(SiO4)3
Milky Quartz Pebble
Silicon dioxide (SiO2)
Quartz with Inclusions
Silicon Dioxide (SiO2)
Clear Quartz (Faceted Crystal)
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3 with chromium trace elements)
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
Chalcopyrite
CuFeS2 (Copper Iron Sulfide)
Magnetite
Magnetite (Fe3O4)
Magnetite (Lodestone)
Magnetite (Fe3O4)
Milky Quartz
Silicon dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)