Quartz
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary And Igneous
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Rock and Mineral Collection
Mixed Geological Specimens
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Limonite
FeO(OH)•nH2O
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz pebble
Silicon dioxide (SiO2)
mineral
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Green Aventurine
SiO2
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Magnetite (Octahedral Crystal)
Magnetite (Fe3O4)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite in Quartz Matrix
Iron Sulfide (FeS2) embedded in 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, SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silica (Chalcedony), SiO2
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Agate
Silicon Dioxide (SiO2)
gemstone
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon dioxide (chalcedony), SiO2
sedimentary
Agate
Silicon dioxide (chalcedony), SiO2
sedimentary
Agate
Silicon dioxide (chalcedony), SiO2
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral