Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
mineral
Category
Organic (Non Geological)
Browse organic (non geological) specimens identified by the Rock Identifier community.
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Granular)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Hematite
Hematite (Fe2O3)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Granite
Granite (composed of Quartz, Feldspar, and Mica)
igneous
Granite
Granite (compositional mixture of Quartz, Feldspar, and Mica)
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal) Bead
Silicon Dioxide (SiO2)
mineral
Tumbled Granite
Granite (composed of Quartz, Feldspar, and Mica)
igneous
Limonite Geode / Ironstone Concretion
Hydrated iron oxide-hydroxide (FeO(OH)·n H2O)
sedimentary
Quartz Matrix with Iron Staining / Mica Schist
Silicon Dioxide (SiO2) with Iron Oxide staining
mineral
Fossiliferous Limestone (Crinoid stem fragments)
Bioclast-bearing Carbonate Rock (Caco3)
fossil
Chert (specifically a Lithic Flake)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Ironstone Concretion
Siderite or Hematite Concretion (FeCO3 or Fe2O3)
sedimentary
Garnet
Garnet (X3Y2(SiO4)3)
mineral
Fossilized Shark Tooth (Dermal Denticle or worn tooth fragment)
Elasmobranchii (fossil remains)
sedimentary
Gold-bearing Quartz Vein in Mafic Rock
Hydrothermal Quartz Vein within Greenschist/Amphibolite facies (SiO2 with Au)
metamorphic
Quartz Vein in Metamorphic Rock
Quartzite or Schist host with Quartz (SiO2) intrusion
metamorphic
Quartz Geode
Quartz (Silicon Dioxide, SiO2) in a Geode
sedimentary
Blue Dyed Agate
Silicon Dioxide (SiO2) with artificial pigment
gemstone
Copper Bullion Round
Native Copper (refined), Cu
mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Basalt with Quartz Veining
Basalt (SiO2-rich veins)
igneous
Fossil Coral
Cnidaria fossil (often Calcium Carbonate / CaCO3)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
mineral
Sandstone with Desert Varnish
Arenite with Ferromanganese patina
sedimentary
Tumbled Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz (Stained with Iron)
Silicon Dioxide (SiO2)
mineral
Clear Quartz Cluster
Silicon Dioxide (SiO2)
mineral