Sandstone (Weathered Pebble)
Arenite (SiO2 primarily)
sedimentary
Category
Mineral (Occurring As A Rolled Clast)
Browse mineral (occurring as a rolled clast) specimens identified by the Rock Identifier community.
Sandstone
Arenite (Sedimentary Rock)
sedimentary
Conglomerate
Conglomerate (Detrital sedimentary rock)
sedimentary
Gravel or Pebble
Clastic Sedimentary Grain (typically composed of Quartz or Silicate minerals)
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Magnetite-rich Iron Ore
Magnetite (Fe3O4)
mineral
Blue Crackle Quartz (Dyed Fire Agate/Quartz)
Silicon Dioxide (SiO2) with artificial dye treatment
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Puddingstone
Conglomerate
sedimentary
Quartz Druzy in Brecciated Matrix
Silicon Dioxide (SiO2) in Lithic Breccia
sedimentary
Conglomerate
Conglomerate Rock (Paraconglomerate)
sedimentary
Amethyst
Silicon dioxide (SiO2) with iron impurities
mineral
Sandstone with Magnetite and Iron Staining
Clastic Sedimentary Rock (contains Fe3O4 and Limonite/Hematite)
sedimentary
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
mineral
Labradorite (Gray Tumbled)
Labradorite (Ca,Na)(Al,Si)4O8
mineral
Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral
Jasper (Green Jasper/Heliotrope variety)
Silicon Dioxide (SiO2)
sedimentary
Citrine
Silicon Dioxide (SiO2)
mineral
Aura Quartz (Titanium Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti)
mineral
Diamond (Round Brilliant Cut)
Diamond (Pure Carbon, C)
mineral
Diamond
C (Carbon)
mineral
Diamond (in Gold Jewelry)
Carbon (C)
mineral
Gold and Diamond
Native Gold (Au) and Diamond (C)
mineral
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Conglomerate
Conglomerate rock
sedimentary
Borosilicate Glass (Manufactured)
SiO2 + B2O3 (Silicon dioxide and Boron trioxide)
Synthetic/Amorphous Solid
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Breccia
Breccia
sedimentary
Hematite
Iron(III) oxide (Fe2O3)
mineral
Magnetite (Small Granule)
Magnetite (Fe3O4)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone Pebbles
Arenite (Sedimentary rock composed of sand-sized grains)
sedimentary
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 + varied clasts)
sedimentary
Sandstone with Quarzite clasts
Arenite (SiO2 based)
sedimentary
Sandstone (River Rock)
Arenite (SiO2 principal component)
sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary