Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Citrine
Silicon Dioxide (SiO2)
mineral
Blue Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Rounded granitic pebble
Granite, a quartz–feldspar-rich plutonic rock
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Gold
Silicon Dioxide with Native Gold (SiO2 + Au)
mineral
Granite
Intrusive felsic igneous rock
igneous
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Granite
Intrusive Igneous Rock
igneous
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Quartz pebble
Silicon dioxide (SiO2)
mineral
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
mineral
Granite
Intrusive Igneous Rock
igneous
Weathered granitic rock (likely granite or granodiorite)
Granite–granodiorite; primarily quartz, feldspar, and mica
igneous
Quartz with Feldspar
Silicon Dioxide (SiO2) with Potassium Feldspar (KAlSi3O8)
igneous
Corundum
Aluminium oxide, Al2O3
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Faceted red garnet
Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃)
gemstone
K-Feldspar (Potassium Feldspar)
Microcline / Orthoclase (KAlSi3O8)
mineral
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Porphyritic Igneous Rock with Iron Oxide Weathering
Weathered Porphyry (containing Quartz, Feldspar, Amphibole/Biotite, and Hematite/Limonite)
igneous
Prehnite
Calcium aluminum silicate hydroxide, Ca2Al2Si3O10(OH)2
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
K-Feldspar (Potassium Feldspar)
KAlSi3O8
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Serafina (Serafinite / Clinochlore)
Clinochlore (Mg5Al)(AlSi3O10)(OH)8
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Basalt
Extrusive igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Tan Brown Granite
Plutonic Igneous Rock
igneous