Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Category
Browse sedimentary (jasper), mineral (aquamarine) specimens identified by the Rock Identifier community.
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
Sandstone
Arenite (SiO2 based typically)
Sandstone (likely Arkosic)
Arenite (SiO2 with KAlSi3O8)
Banded Agate (Chert/Chaldcedony)
Silicon Dioxide (SiO₂)
Bauxite
Bauxite (Al2O3·2H2O)
Sandstone
Arenite
Sandstone (likely Red/Brown Sandstone)
Arenite (SiO2 based)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Pyrite on Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
Chert Conglomerate (or Breccia)
Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)
Yellow Calcite
Calcium Carbonate (CaCO3)
Blue Chalcedony
Silicon Dioxide (SiO2)
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Note: Image shows a biological specimen (Rat), not a rock. Representative geological equivalent: Galena (due to lead-grey colors in fur).
Galena (PbS)
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Native Sulfur
Sulfur (S)
Turquoise
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
Quartz in Matrix
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite (SiO2 based)
Carnelian
Carnelian (SiO2)
Red Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3 iron oxide staining)
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Blue Lace Agate
Cryptocrystalline Quartz (SiO2) with trace minerals
Quartz
Silicon Dioxide (SiO2)
Sandstone (Stream Pebble)
Arenite (primarily SiO2)
Ferruginous Sandstone
Arenite with Iron-oxide cement
Wallboard/Drywall (Gypsum-based)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Red Sandstone
Arenite (with Iron Oxide / Hematite cementation)
Chert
Silicon dioxide (SiO2)
White Marble
Recrystallized Calcite (CaCO3)
Geode (Unopened)
Siliceous Concretion / Geode
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))