Mineral On Sedimentary Rock

Ferruginous Sandstone

Sandstone, Iron-rich

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Red Jasper

Jasper (Silicon Dioxide based crypto-crystalline Quartz with Iron inclusions)

Chert (Nodular Chert)

Microcrystalline Silica (SiO2)

River/Stream Pebble

Clast / Detrital Grain / Rounded Sedimentary Particle (Compositionally variable, commonly Quartz, Feldspar, Chert, or other resistant rock fragments)

Grey River Stone (Quartz-rich Quartzite/Siltstone)

Quartzite / Meta-siltstone (primarily SiO2)

Petrified Wood

Silicified wood (primarily SiO2)

Chert (Agatized)

Silicon dioxide (SiO2)

Chert (Jasper)

Silicon Dioxide (SiO2)

Red Jasper (possibly Red Coral or dyed Howlite)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Chert Pebble/Nodule

Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)

Limestone

Calcium Carbonate (CaCO3)

Chert (Nodule)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz

Bivalve Fossil (Clam)

Class Bivalvia (Calcium Carbonate, CaCO3)

Chert (Gravel Bit)

Microcrystalline silica (SiO2)

Chert (varieties include Flint and Jasper)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Conglomerate

Conglomerate (Sedimentary rock containing rounded clasts)

Quartz

Silicon Dioxide (SiO₂)

Magnetite / Iron Ore

Magnetite (Fe3O4)

Quartz (Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Petrified Wood

Silicified Wood (primarily SiO2)

Mookaite Jasper

Silicified Radiolarite (SiO2)

Coral Fossil (Petrified Coral)

Scleractinia (Order) - Calcified Fossil Skeleton (CaCO3)

Banded Sandstone

Arenite (composed primarily of Quartz: SiO2)

Red Shale

Lutite (primarily composed of Hydrous Aluminum Silicates with Hematite staining)

Rough Garnet in Matrix

Almandine Garnet (Fe3Al2Si3O12)

Chert (specifically Pink/Tan Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Red Jasper (Quartz)

Silicon Dioxide (SiO2) with Iron impurities

Ferruginous Sandstone (Ironstone)

Sandstone with Hematite/Goethite cement (SiO2 + FeO(OH))

Banded River Rock / Gneiss (highly weathered)

Gneiss

Gneiss

Gneiss (High-grade regional metamorphic rock)

Herkimer Diamond in Matrix

Quartz (SiO2) in Dolostone (CaMg(CO3)2)

Agate Slices and Clear Quartz Points

Agate (SiO2 Chalcedony) and Clear Quartz (SiO2 Crystalline)

Bumblebee Jasper

Fossiliferous Calcite containing Orpiment and Realgar

Mookaite Jasper

Silicified Radiolarite (Silicon Dioxide: SiO2)

Greenschist

Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Red Sandstone

Arenite with Hematite cementation

Quartz (Clear / Rock Crystal)

Silicon Dioxide (SiO2)