Coarse Sandstone Pebble
Clastic Sedimentary Rock (Sandstone)
sedimentary
Category
Mineral (Synthetic Paper And Ink Polymorph)
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Learn about Mineral (Synthetic Paper And Ink Polymorph) in the encyclopedia
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Agate
Silicon dioxide (SiO2)
mineral
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Yellow Ochre (Limonite)
Limonite (FeO(OH)·nH2O)
mineral
Citrine (tumbled)
Silicon dioxide, SiO2
mineral
Pyrite in Matrix
Iron Sulfide (FeS2) embedded in host rock
mineral
Tanzanite
Blue Zoisite (Ca2Al3(SiO4)3(OH))
mineral
Diamond (in a jewelry setting)
Diamond (Carbon, C)
mineral
Diamond (in a gold setting)
Carbon (C)
mineral
Lepidolite with Mica / Quartz
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Quartz Crystal Cluster in Matrix
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate) Pebble
Silicon Dioxide (SiO2)
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz on Host Rock
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Fuchsite
Cr-bearing Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Quartz-Tourmaline Pebble
Quartz with Tourmaline inclusions
igneous
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Pegmatite (Quartz, Feldspar, and Tourmaline/Biotite)
Pegmatitic Igneous Rock
igneous
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Amethyst Cluster
Silicon Dioxide (Quartz variety: Amethyst), SiO2
mineral
Blue Lace Agate
Silicon Dioxide (Chalcedony variety), SiO2
gemstone
Green Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Pink Mimbres Agate / Plume Agate
Silicon dioxide (SiO2) with mineral inclusions
gemstone
Tourmalinated Quartz
Silicon Dioxide with Tourmaline inclusions (SiO2 + Na(Fe3Al6)(Al5Si6O18)(BO33)(OH4))
mineral
Quartz Geode or Druzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Amethyst
Quartz (SiO2)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Agate / Chalcedony Geode
Silicon Dioxide (SiO2)
sedimentary
Pegmatite (Quartz with Tourmaline/Biotite inclusions)
Igneous Pegmatite
igneous
Iron-stained Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
Chalcedony (Yellow/Brown Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Hematoid Quartz (Fire Quartz)
Silicon Dioxide with Iron Oxide (SiO2 with Fe2O3)
mineral