Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Category
Man Made Object (Simulant)
Browse man made object (simulant) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Sandstone Concretion
Ferruginous Sandstone Concretion (Primarily SiO2 with Iron Oxide cement)
sedimentary
Red Jasper (Chert)
Silicon Dioxide (SiO2)
sedimentary
Diamond (in a Gold Jewelry Setting)
Carbon (C)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Weathered Pebble)
Arenite (SiO2 primarily)
sedimentary
Chert (and/or Flint)
Silicon Dioxide (SiO2)
sedimentary
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with Biogenic Inclusions
sedimentary
Fossiliferous Limestone (with Coralline Inclusions)
Calcium Carbonate (CaCO3)
sedimentary
Scoria (Lava Rock)
Scoriaceous Basalt
igneous
Green Calcite (Onyx Marble)
Calcium Carbonate (CaCO3)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Schist
Mica Schist
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Red Coral
Corallium rubrum
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
mineral
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Sapphire (Corundum)
Corundum (Al2O3), variety Sapphire
Mineral
Quartzite and Jasper Pebbles
Quartzite (re-crystallized Quartz) and Cryptocrystalline Quartz (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (predominantly SiO2)
metamorphic
Fluorite
Calcium Fluoride (CaF2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide impurities), formula: SiO2
mineral
Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Yellow Quartz Pebble
SiO2 (Silicon Dioxide)
mineral
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Geode (unopened)
Silica-filled Concretion (SiO2)
sedimentary
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Coarse Sandstone
Arenite (SiO2 based)
sedimentary
Amethyst
Silicon Dioxide (SiO2) with trace Iron (Fe3+)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Fossilized Rugose Coral (Horn Coral)
Order Rugosa (extinct tetra-coral)
sedimentary
Shale (Ferruginous)
Laminated Mudrock (Siliciclastic Sedimentary Rock)
sedimentary
Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Ocean Jasper (Orbicular Jasper)
Orbicular Rhyolite (SiO2)
igneous