Magnetite
Magnetite (Fe3O4)
mineral
Category
Mineral Like Byproduct
Browse mineral like byproduct specimens identified by the Rock Identifier community.
Learn about Mineral Like Byproduct in the encyclopedia
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Fluorite Tower
Calcium Fluoride (CaF2)
mineral
Labradorite (White/Grey Labradorite)
Labradorite: (Ca, Na)(Al, Si)4O8
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Howlite (Tumbled)
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Azurite
Azurite (Cu3(CO3)2(OH)2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Howlite
Howlite (Ca2B5SiO9(OH)5)
mineral
Seraphinite
Clinochlore (Mg,Fe2+)5Al(Si3Al)O10(OH)8
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Fancy Jasper
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Turquoise or Chrysocolla (Inlaid Jewelry)
Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate
mineral
Gneiss
Banded Metamorphic Rock (Gneiss)
metamorphic
Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Porphyry
Porphyritic Igneous Rock
igneous
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
metamorphic
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite Pebble
Granitoid (Felsic Plutonic Rock)
igneous
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
sedimentary
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
gemstone
Conglomerate
Clastic sedimentary rock (Polymict conglomerate with quartz/calcite matrix)
sedimentary
Conglomerate
Sedimentary Conglomerate
sedimentary
Greenstone
Metabasalt / Metavolcanic rock
metamorphic
Vesicular Basalt (or Scoria)
Vesicular Basalt
igneous
Obsidian
Volcanic Glass (70% or more SiO2)
igneous
Chert (Jasper/Flint variety)
Sedimentary silica (SiO2)
sedimentary
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Specular Hematite
Specularite (Iron Oxide, Fe2O3)
mineral
Fuchsite (Chrome Mica)
K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Jasper Pebble
SiO2 (Microcrystalline Quartz)
sedimentary
River Cobble (Quartzite or Gneiss)
Metamorphic crystalline rock (predominantly SiO2 based)
metamorphic
Green Schist (Greenschist)
Greenschist facies metamorphic rock
metamorphic
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite (River-worn Pebble)
Phaneritic Igneous Rock (Granitic composition)
igneous
Granite
Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)
igneous
Quartzite
Quartzite (High-purity SiO2)
metamorphic