Quartz Cluster (Likely Ferruginous)
Silicon Dioxide (SiO2)
mineral
Category
Igneous And Sedimentary Mixture
Browse igneous and sedimentary mixture specimens identified by the Rock Identifier community.
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Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Granite pebble
Coarse-grained granitic rock, principally quartz, potassium feldspar, plagioclase feldspar, and biotite mica; likely biotite granite or weathered pegmatitic granite
igneous
Quartz with Inclusions
Silicon Dioxide (SiO2)
mineral
Agate
SiO2 (Chalcedony/Quartz)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Bauxite
Aluminum ore (mixture of gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH))
sedimentary
Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Leopard Skin Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
sedimentary
Bauxite
Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
sedimentary
Bauxite
Bauxite (mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony variety), SiO2
gemstone
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Quartz (Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Rock
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate, CaCO3
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Faceted)
SiO2 - Silicon Dioxide
gemstone
Faceted Clear Quartz or Diamond Simulant
Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic
gemstone
Magnetite Ore
Magnetite (Fe3O4)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Magnetite / Ironstone
Iron(II,III) oxide (Fe3O4)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral