Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse sedimentary and igneous (mixed) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
Pyrite
Iron Sulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Green Calcite
Calcium Carbonate (CaCO3)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Garnet
Garnet group [X3Y2(SiO4)3]
Quartz Druzy (on Geode Fragments)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Clear or Cloudy)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Grey Chalcedony (Agate)
Silicon Dioxide (SiO2)
Pyrulite (Pyrite / Chalcopyrite)
Iron Sulfide (FeS2) or Copper Iron Sulfide (CuFeS2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Microcrystalline/Gravel)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz (Gray/Smoky Varieties)
Silicon Dioxide (SiO2)
Quartz / Common Gravel
Silicon Dioxide (SiO2)
Pyrite (on Shale/Matrix)
Iron Disulfide (FeS2)
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Small white mineral fragment
Indeterminate; possibly quartz, calcite, or feldspar
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Magnetite
Iron(II,III) oxide (Fe3O4)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)