Quartz (Raw Specimen)
Silicon Dioxide (SiO2)
mineral
Category
Mixed (Igneous, Sedimentary, Metamorphic, And Minerals)
Browse mixed (igneous, sedimentary, metamorphic, and minerals) specimens identified by the Rock Identifier community.
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Quartzite with Mica / Gneiss Pebble
Metamorphic Rock (Quartz-Feldspar-Mica aggregate)
metamorphic
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Jasper and Quartz Breccia
Silica breccia (SiO2)
sedimentary
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Pink/Rose Quartz or Quartz Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Gneiss (Cobble)
Gneiss
metamorphic
Mixed rock fragments, likely basalt and weathered granite
Probable mafic volcanic rock (basalt) with granitoid fragments; exact identification is uncertain from the image
igneous
Chrysocolla in Matrix
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Gneiss
Gneiss
metamorphic
Mixed tumbled gemstone collection
Varied minerals, likely including amethyst, sodalite/lapis lazuli, quartzite or aventurine, jasper, and agate/chalcedony
gemstone
Magnetite
Fe3O4 (Iron(II,III) oxide)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Crushed Granite and Quartz Gravel
Composite Igneous and Silicate Rock Aggregate
igneous
Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Na4Al3(SiO4)3Cl (Sodium Aluminum Silicate Chloride)
mineral
Gneiss
Gneiss
metamorphic
Tumbled White Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Azurite Malachite (Mixed)
Azurite-Malachite; Azurite: Cu3(CO3)2(OH)2 / Malachite: Cu2CO3(OH)2
mineral
Polished Hematite Tower
Hematite (Fe2O3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Banded Gneiss (Metamorphic Rock)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Greenish Metamorphic Rock (likely containing epidote or chlorite)
Metamorphic rock, possibly epidosite or greenstone
Metamorphic
Magnetite / Ironstone
Iron(II,III) oxide (Fe3O4)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Gneiss
Metamorphic Gneiss
metamorphic
Black Tourmaline (Schorl)
NaFe3Al6(BO3)3Si6O18(OH)4
Mineral
Quartz
Silicon Dioxide (SiO2)
mineral