Asphalt (Bituminous pavement fragment)
Artificial conglomerate / Bitumen-Aggregate mixture
sedimentary
Category
Mixed (Igneous, Sedimentary, Metamorphic, And Minerals)
Browse mixed (igneous, sedimentary, metamorphic, and minerals) specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Foliated Metamorphic Rock (likely Gneiss or Schist)
Gneissic Metamorphic Rock
metamorphic
Smoky Quartz and Orthoclase Feldspar
Granitic Pegmatite (SiO2 + KAlSi3O8)
igneous
Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)
Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))
mineral
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Magnetite
Magnetite (Fe3O4)
mineral
Gneiss
High-grade regional metamorphic rock (Foliated)
metamorphic
Graphite
Graphite (Native Carbon), Formula: C
Metamorphic
Sandstone (likely Greywacke or Siltstone variety)
Arenite / Siltstone (primarily SiO2)
sedimentary
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Ironstone Concretion (Moqui Marble)
Iron Oxide Concretion (Fe2O3 / FeO(OH) mixed with SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Bornite
Bornite (Cu5FeS4)
mineral
White Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (in matrix)
Quartz (SiO₂)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Limonite (Iron Ore/Sandstone mixture)
Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix
mineral
Gneiss
Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Gneiss
metamorphic
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Unakite
Unakite (altered granite)
metamorphic
Black Tourmaline (Schorl)
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral