Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Category
Browse sedimentary (if natural jasper) or artificial (if slag) specimens identified by the Rock Identifier community.
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz with Fe2O3 staining)
Ammonite Fossil
Ammonitida (Extinct subclass of Cephalopoda)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 based)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite
Yellow Quartz (Citrine-colored Quartz Pebble)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Sedimentary Sandstone (Sandstone Slab)
Arenite (SiO2 with Fe2O3 staining)
Banded Iron Formation (BIF) / Tiger Iron
Ferruginous Chert (primarily Quartz [SiO2] and Hematite/Magnetite [Fe2O3/Fe3O4])
Kimberlite
Kimberlite (Potassic ultramafic volcanic rock)
Sandstone (Quartzite Pebble)
Arenite / Metamorphosed Sandstone (SiO2)
White Calcite
Calcium Carbonate (CaCO3)
Citrine
Citrine (Silicon Dioxide, SiO2)
Coarse Sandstone
Arenite (SiO2 based)
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Fossil Coral (Rugose Coral Fragment)
Rugosa (extinct order of solitary and colonial corals)
Black Tourmaline (Schorl)
Sodium Iron Aluminum Borosilicate (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
Titanium Quartz (Rough)
Titanium-included Silicon Dioxide (SiO2 + Ti)
Pyrite
Iron Sulfide (FeS2)
Sandstone Concretion
Ferruginous Sandstone Concretion
Rough Corundum (likely Sapphire/Zircon-bearing)
Aluminium Oxide (Al2O3)
Sandstone (Weathered Pebble)
Arenite (SiO2 primarily)
Sandstone Concretion
Clastic sedimentary rock (primarily Silica, SiO2, or Calcium Carbonate, CaCO3)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Sandstone Beach Pebble
Clastic sedimentary rock (SiO2 with iron oxide cement)
Quartz (Water-worn pebble)
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
Petrified Wood (Jet or Coalified Wood appearance)
Silicified wood (principally SiO2) or Carbonized Wood
Sandstone (likely Quartzose)
Sandstone (Principally SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (likely Quartzose Sandstone)
Arenite (composed primarily of SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
Diamond (or high-quality simulant like Cubic Zirconia)
Carbon (C) - Native Element
Sandstone
Arenite (composed primarily of SiO2)
Ironstone (likely Limonite or Goethite nodule)
Hydrothermally altered Ferric Hydroxide (FeO(OH)·nH2O)