Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Category
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron impurities
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Limonite inclusions
Jasper
Silicon dioxide, SiO2
River Pebbles and Quartz
Mixed Igneous, Sedimentary, and Metamorphic Rocks (Silicon Dioxide SiO2 dominant)
Banded Gneiss
Gneiss (Metamorphic high-grade rock)
Chert (Pink and Yellow Chert)
Microcrystalline Quartz (SiO2)
Gneiss
Gneiss (High-grade metamorphic rock)
Druzy Quartz
Crystalline Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Geode (Unopened)
Silica-rich Concretion (primarily SiO2)
Chert (Septarian or Banded Nodular Variety)
Microcrystalline Quartz (SiO2)
Sandstone (Red Sandstone)
Arenite
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (with Quartz Veining)
Microcrystalline Quartz (SiO2)
Almandine Garnet in Schist Matrix
Almandine - Fe3Al2(SiO4)3
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon dioxide (SiO2)
Schist
Mica Schist
Chalcedony on Matrix
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Ironstone with Limonite/Goethite coating
Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O)
Chert (specifically Flint or Jasper variant)
Chert (Siliceous rock composed of microcrystalline Quartz, SiO2)
Mookaite Jasper
Siliceous sedimentary rock (variety of Jasper/Chert)
Anthracite Coal
Anthracite (Carbon-based sedimentary-metamorphic rock)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
Sandstone
Arenite (SiO2 based)
Red Sandstone
Arenite (primarily Quartz SiO₂ with Hematite Fe₂O₃ staining)
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Septarian Nodule
Septarian Concretion (CaCO3, CaMg(CO3)2, SiO2)
Sandstone (Quartzose Sandstone)
Arenite
River Pebble Gravel
Hydrothermally modified Clastic Sediment (mainly Quartzite and Chert)
River Pebble (Quartz-rich)
Silicon Dioxide (SiO2) with various inclusions
Sandstone
Arenite (SiO2 with various cementing agents)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Yellow Jasper
Silicon Dioxide with Iron inclusions (SiO2)
African Turquoise
Teal Jasper (Macro-crystalline Quartz/Sio2 + Inclusions of Copper, Iron, and Manganese)
Gold
Native Gold (Au)
Dendritic Agate (River Pebble)
Silicon Dioxide (SiO2) with Manganese or Iron oxide inclusions