Petrified Wood
Silicified Wood (primarily SiO2)
Category
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Petrified Wood
Silicified Wood (primarily SiO2)
Granite
Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, NaAlSi3O8)
Sandstone
Arenite (SiO2 based)
Diamond
C (Carbon)
Greenstone
Chlorite schist / Meta-basalt
Chert (varieties include Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Red Sandstone (Arkose)
Clastic Sedimentary Rock (Lithic Arkose)
Milky Quartz
Silicon Dioxide (SiO2)
Calcite
Calcite (CaCO3)
Amygdaloidal Basalt with Epidote
Vesicular Basalt with secondary Epidote/Quartz mineral infill
Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Sandstone
Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Arkosic or Quartzose)
Arenite (SiO2 based with mineral inclusions)
Granite
Granite (Felsic Plutonic Rock)
Muscovite Mica
Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2
Diamond
Diamond (C)
Olivine (Peridot in gem form)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Sandstone (Quartzose Sandstone)
Arenite (SiO2)
Granite
Phaneritic Felsic Igneous Rock (Granite)
Breciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Pegmatite (Granitic)
Granitic Pegmatite containing Quartz, Feldspar, and Tourmaline (Schorl)
Serpentinite (often called Jade or Nephrite substitute)
Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2-rich)
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
Sandstone
Arenite (composed primarily of SiO2)
Stromatolite
Stromatolite (Cyanobacteria-formed Organo-sedimentary structure)
Sandstone (likely Fossiliferous)
Arenite / Sedimentum arenaceum
Chert (often referred to as 'Jasper' when red)
Chert (microcrystalline quartz, SiO₂)
Banded Calcite (often sold as 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
Sandstone
Arenite (SiO2 primarily)
Sandstone (with potential fossil inclusions)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite
Orange Quartzite / Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
Sandstone (Weathered)
Arenite (primarily SiO2)
Sandstone (clastic)
Clastic Sedimentary Rock (primarily composed of SiO2)
Sandstone (Ferruginous)
Arenite (with Iron Oxides)
Kyanite
Kyanite (Al2SiO5)