Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Limestone (Ocherous)
Calcium Carbonate (CaCO3) with Iron Oxide (Limonite)
Chert (Honey Chert or Chalcedony Pebble)
Cryptocrystalline Quartz (SiO2)
Chert (River Siltstone/Flint)
Chert (SiO2)
Laterite (Iron-rich bauxite or Gossan)
Ferricrete (Fe2O3·nH2O)
Chert (Pebble)
Silicon Dioxide (SiO2)
Botryoidal Chalcedony / Quartz
Silicon Dioxide (SiO2)
Celestine (or Celestite)
Strontium sulfate (SrSO4)
Tumbled quartz (likely milky quartz)
Quartz — silicon dioxide (SiO₂)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Quartz Pebble
Silicon Dioxide (SiO2)
Talc (Soapstone variety)
Talc (Hydrated magnesium silicate) - Mg3Si4O10(OH)2
Glauconitic Sandstone
Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
Banded Iron Formation (Jaspilite / Hematite Jasper)
SiO2 + Fe2O3 (Quartz with Hematite/Magnetite)
Howlite (Dyed Turquoise)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Native Copper within Host Rock
Native Copper (Cu)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Limestone
Sedimentary rock composed of Calcium Carbonate (CaCO3)
Chert (Jasper)
Silicon Dioxide (SiO2)
Chert (River Pebble)
Silicon Dioxide (SiO2)
Chert with Quartz Vein
Silicon dioxide (SiO2)
Pink Dyed Agate
Silicon Dioxide (SiO2) with synthetic pigment
Orange Calcite
Calcium Carbonate (CaCO3)
Halite
Halite (Sodium Chloride, NaCl)
Sandstone (Stream Pebble)
Arenite (primarily SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
Black Obsidian
Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)
Sea Glass
Amorphous silicon dioxide (glass)
Green Fluorite
Calcium Fluoride (CaF2)
Honey Calcite
Calcite (Calcium Carbonate - CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Quartz (Microcrystalline/Chert)
Silicon Dioxide (SiO2)
Limonite pseudomorph after Pyrite
Goethite/Limonite FeO(OH)·nH2O
Orange Calcite
Calcium Carbonate (CaCO3)
Auriferous Quartz (Gold-bearing Quartz)
Silicon Dioxide (SiO2) with Elemental Gold (Au)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)