Granite / Quartzite Specimen
Granite / Quartz (SiO2 with Feldspar and Mica)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Granite / Quartzite Specimen
Granite / Quartz (SiO2 with Feldspar and Mica)
Granite Pebble
Granite (Phaneritic Quartz-Feldspar Rock)
Granite (River Cobble)
Phaneritic Plutonic Felsic Rock (Granite)
Chert
Chert (Microcrystalline Silica, SiO2)
Granite
Granite (a common rock type, not a single mineral species)
Chalcedony (likely agate/chert fragment)
Microcrystalline quartz, SiO₂
Limestone
Calcium Carbonate (CaCO3)
Limestone with Calcite Veining
Sedimentary Rock (Calcium Carbonate, CaCO3)
Sandstone (Calcareous)
Clastic sedimentary rock (primarily SiO2 with CaCO3 cement)
Sandstone Pebble
Arenite (SiO2 primarily)
Limestone with Fossil Fragments
Bioclastic Limestone (CaCO3)
Sandstone
Arenite
Sandstone
Arenite (primarily SiO2)
Limestone with Calcite Veins
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with Fe2O3)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primarily)
Sandstone
Arenite (SiO2 based)
Limestone (Micritic)
Sedimentary rock mainly composed of Calcium Carbonate (CaCO3)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (Sandstone)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Quartz
Silicon Dioxide (SiO2)
Banded calcite (likely marble or calcite-rich limestone)
Calcite, CaCO₃; possibly calcitic marble
Hand-Drawn Trading Card (Amateur Artwork)
Cellulose-based substrate with wax/graphite/ink deposit (n/a for minerals)
Kambaba Jasper (Crocodile Jasper)
Stromatolitic Rhyolite/Jasper (SiO2)
Ferruginous Sandstone
Ferruginous Quartz-Arenite
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Native Silver
Silver (Ag)
Limestone
Calcium Carbonate (CaCO3)
Sandstone Pebble
Arenite (SiO2 dominated)
Sandstone (with potential fossil fragments)
Sandstone (SiO2 dominated with iron oxides)
Sandstone
Arenite
Sandstone
Sandstone (Siliciclastic Sedimentary Rock)
Sandstone
Arenite
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Limestone Gravel
Calcium Carbonate (CaCO3)
Sandstone
Clastic sedimentary rock (primarily SiO2)