Liesegang Stone (Sandstone with Liesegang Rings)
Clastic sedimentary rock with li-secondary iron oxide mineralization
sedimentary
Category
Mineral Side Rock
Browse mineral side rock specimens identified by the Rock Identifier community.
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Chert (Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Shale with Vein Infillings
Shale (a fine-grained clastic sedimentary rock). The veins could be Calcite (CaCO3), Quartz (SiO2), or other minerals.
Sedimentary Rock
Unakite
Epidotized Granite
metamorphic
Black Obsidian
Obsidian (Volcanic Glass)
igneous
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
metamorphic
Dalmatian Jasper
Peralkaline Quartz Feldspar Porphyry
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Geode (unopened) or Calcareous Nodule
Siliceous or Calcareous Concretion/Nodule
sedimentary
Dalmatian Jasper
Aplite with Arfvedsonite inclusions
igneous
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Quartzite and Sandstone Pebbles
Silicon dioxide (SiO2)
metamorphic and sedimentary
Granite
Granite (High-silica plutonic rock)
Igneous
Basalt with Quartz/Plagioclase Inclusions
Mafic volcanic rock (Basaltic)
igneous
Chert (Common Opal or Flint variant)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone Beach Pebble
Clastic Sedimentary Rock (primarily Quartz with Iron Oxide coating)
sedimentary
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeOOH cement)
sedimentary
Granite Pebble
Felsic intrusive igneous rock (composition: Quartz, Feldspar, Mica)
igneous
Garnet Schist
Almandine Garnet in Schist (X3Al2(SiO4)3)
metamorphic
Amygdaloidal Basalt
Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)
igneous
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Sedimentary
Granite Gneiss
Gneiss (quartz-feldspar dominated)
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Concrete Fragment
Hardened Portland Cement Composite
Anthropogenic (Man-made material mimicking sedimentary rock)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Sandstone with Ironstone Banding
Clastic Sandstone (composed of Quartz with Hematite/Limonite bonding)
sedimentary
Copper-bearing Quartz (with Malachite and Iron Oxides)
Quartz (SiO2) with Malachite (Cu2CO3(OH)2) and Hematite/Limonite (Fe2O3)
Mineral Specimen
Quartz on Host Rock
Silicon Dioxide (SiO2)
mineral
Dalmatian Jasper
Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)
igneous
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Amygdaloidal Basalt with Secondary Minerals
Basalt containing secondary mineralization (likely Chlorite, Celadonite, or Zeolites)
igneous
Amethyst and Agate Geode Section
Silicon Dioxide (SiO2) - Crystalline Quartz and Chalcedony
mineral
Banded Agate
Cryptocrystalline Silica (SiO2)
mineral
Quartz / Quartzite
Silicon Dioxide (SiO2)
mineral
Quartz Grain
Silicon Dioxide (SiO2)
mineral
Quartz / Rose Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (SiO2)
mineral
Crazy Lace Agate
Agate (Chalcedony - SiO2)
Mineral