Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Category
Browse mineral within a sedimentary rock specimens identified by the Rock Identifier community.
Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Ferruginous Chert
Microcrystalline Quartz (SiO2) with Iron Oxides
Agate and Amethyst (Quartz variants)
Silicon Dioxide (SiO2) - Microcrystalline Quartz and Crystalline Quartz
Granodiorite
Granodiorite
Liesegang Ring Siltstone
Siltstone with iron oxide Liesegang bands
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
Slate with Red Sandstone Landscaping Rock
Foliated Pelitic Metamorphic Rock (Slate) and Ferruginous Sandstone
Petrified Wood
Silicified Wood (primarily SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Chert (Agatized Chert)
Microcrystalline Quartz (SiO2)
Banded Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Petoskey Stone (Petrified Favosites)
Favosites (extinct colonial coral), CaCO3 with Silica replacement
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
Jasper-Agate Breccia
Silicon Dioxide (SiO2) with iron oxide inclusions
Granite
Phaneritic plutonic felsic rock
Chert (White-Tan variety)
Silicon dioxide (SiO2) / Microcrystalline Quartz
Chert (Flint Nodules)
Silicon Dioxide (SiO2)
Wishing Stone (Basalt/Greywacke with Quartz Vein)
Basalt or Siltstone with SiO2 (Quartz) hydrothermal intrusion
Petrified Wood
Silicified Wood (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
Gneiss
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Pink Jasper variant)
Microcrystalline Quartz (SiO2)
Amethyst (Quartz)
Amethyst (Silicon Dioxide with Iron impurities, SiO2)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Granite
Phaneritic Igneous Rock (composed primarily of Quartz SiO2, Alkali Feldspar (K,Na)AlSi3O8, and Plagioclase Feldspar)
Granite Gneiss with Garnet
Garnetiferous Gneiss
Red Sandstone
Arenite (ferruginous sandstone)
Chert (Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (or Flint)
Chert (Sedimentary Cryptocrystalline Sio2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Granite
Phaneritic Felsic Intrusive Igneous Rock
White Opal (Common)
Hydrated Silica (SiO2·nH2O)
Banded Chert
Microcrystalline Quartz (SiO2)
River Pebble Gravel
Hydrothermally modified Clastic Sediment (mainly Quartzite and Chert)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Chert (and associated Sedimentary rocks)
Microcrystalline Silica (SiO2)
Honey Calcite (Yellow Calcite)
Calcium Carbonate (CaCO3)
Quartz (Milky or Clear Quartz fragment)
Silicon Dioxide (SiO2)
Laterite
Laterite (no specific mineral formula as it's a rock type)
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)