Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Category
Browse mineral within sedimentary rock specimens identified by the Rock Identifier community.
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Chert (Chert / Flint nodule)
Silicon Dioxide (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Red Jasper (possibly Red Coral or dyed Howlite)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Chert (Quartzite-rich River Pebble)
Silicon Dioxide (SiO2)
Chert (specifically Tan Chert or Flint)
Silicon Dioxide (SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Limestone
Calcium Carbonate (CaCO3)
River Rock (Greywacke/Siltstone)
Siltstone / Argillaceous Greywacke
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
Red Jasper (Quartz)
Silicon Dioxide (SiO2) with Iron impurities
Pumice
Pumice (a highly vesicular extrusive igneous rock, primarily amorphous silica)
Mookaite Jasper
Silicified Radiolarite (SiO2)
Banded River Rock / Gneiss (highly weathered)
Gneiss
Quartz Pebble
Silicon Dioxide (SiO2)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Rough Garnet in Matrix
Almandine Garnet (Fe3Al2Si3O12)
Chert (Chert Nodule)
Microcrystalline quartz (SiO2)
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Gneiss
Gneiss (High-grade regional metamorphic rock)
Coquina / Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
Chert (Jasper/Jasperoid)
Chert (chemically precipitated microcrystalline Quartz, SiO2)
Amethyst (Geode)
Silicon Dioxide (SiO2) with iron impurities
Agate Slices and Clear Quartz Points
Agate (SiO2 Chalcedony) and Clear Quartz (SiO2 Crystalline)
River Cobble (Salt and Pepper Gneiss)
Gneiss (High-grade regional metamorphic rock)
Limestone
Calcium Carbonate (CaCO3)
Scoria (Lava Rock)
Scoria (highly vesicular extrusive igneous rock)
Greenschist
Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)
Chert (Tan/Brown)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert (Flint)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Calcite
Calcite (Calcium Carbonate, CaCO3)
Chert (specifically Tan/Brown Chert)
Chert (SiO2)
Chert (and Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (White Flint)
Microcrystalline Quartz (SiO2)
Chert (Chalky/Gray Variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Ocean Jasper
Orbicular Jasper (Silicon Dioxide SiO2)
Chert
Microcrystalline silica (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)