Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Aquamarine (Tumbled)
Beryl (Be3Al2Si6O18)
mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Black Obsidian
Volcanic Glass (SiO2)
igneous
Pink Tourmaline (Rubellite)
Rb:Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 (Elbaite variety)
mineral
Fluorite (Green)
Fluorite (Calcium Fluoride, CaF2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Magnetite (Small Granule)
Magnetite (Fe3O4)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Specular Hematite
Iron(III) oxide (Fe2O3)
mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions
mineral
Orange Calcite point
Calcite (Calcium Carbonate, CaCO3)
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Eudialyte
Na15Ca6Fe3Zr3Si26O72(OH,Cl)2 (Eudialyte Group)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Prehnite on Basalt
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Olivine
Magnesium Iron Silicate ((Mg, Fe)₂SiO₄)
mineral
Chrysocolla (on host rock)
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Schorl (Black Tourmaline)
Silicon Dioxide (SiO2) with Sodium Iron Aluminum Borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Granite
Phaneritic Felsic Igneous Rock
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
River Quartz Cobble
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar and Quartz
KAlSi3O8 (Potassium Feldspar) and SiO2 (Quartz)
mineral
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Labradorite
Feldspar (variety of Anorthite), (Ca,Na)(Al,Si)4O8
mineral