Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
Category
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Basalt River Cobble
Basalt (Aphanitic Mafic Volcanic Rock)
Limestone
Sedimentary Calcite (CaCO3)
Chert (Nodular or Fossiliferous)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Quartz Variety)
Chert (Silicon Dioxide, SiO2)
N/A (Non-Geological Specimen)
Asphalt (Bituminous Slate/Sandstone)
Asphaltum / Bituminous Rock
Banded Iron Formation (BIF) with Quartz
Banded Iron Formation, often composed of alternating layers of hematite (Fe2O3) or magnetite (Fe3O4) and chert (microcrystalline quartz, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Clear Quartz (Rock Crystal)
Quartz (SiO₂)
Chert (Flint Nodules)
Chert (Microcrystalline Quartz, SiO2)
Greisen (Quartz-Muscovite-Turretine Rock)
Greisen
Chert (Grey-Green Flint)
Microcrystalline silicon dioxide (SiO2)
Chert and Chalcedony
Cryptocrystalline Quartz (SiO2)
Chert Geode with Quartz Druzy
Microcrystalline Quartz (SiO2) with macrocrystalline Quartz
Chert (specifically Yellow or Brown Chert / Jasper)
Silicon Dioxide (SiO2)
Bituminous Coal
Bituminous coal (Carbonaceous sedimentary rock)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Kambaba Jasper (Crocodile Jasper)
Rhyolite containing Fossilized Cyanobacteria (Stromatolite)
Jasper (specifically Bloodstone/Heliotrope or Dark Green Jasper)
Cryptocrystalline Quartz (SiO2) with inclusions
Banded Chert (Agate)
Silicon Dioxide (SiO2)
Fossiliferous Limestone with Rugose Coral
Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)
Citrine
SiO2 (Silicon Dioxide)
Chert / Jasper
Sedimentary Cryptocrystalline Quartz (SiO2)
Clear Quartz (Rock Crystal Fragments)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (specifically Iron-stained or Jasperoid Chert)
Microcrystalline Quartz (SiO2)
Chert (specifically Yellow/Common Opal or Jasper mixture)
Silicon Dioxide (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Chert (varietal Flint or Jasper)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (likely Quartzose)
Clastic sedimentary rock (SiO2 primary)
Chert (Nodule)
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Arkosic Sandstone (or Conglomeritic Sandstone fragment)
Arkose (rich in feldspar)