Fossil Shark Tooth
Carcharodon sp. (likely Otodus or similar Lamniformes order)
Category
Browse mineral, sediment specimens identified by the Rock Identifier community.
Fossil Shark Tooth
Carcharodon sp. (likely Otodus or similar Lamniformes order)
Fossil Shark Tooth
Carcharodon or Carcharias fossil (Vertebrate Fossil)
Black Veined Jasper (Spiderweb Jasper)
Silicon Dioxide (SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Wishing Stone (Quartz-veined Siltstone or Graywacke)
Hydrothermal Quartz vein in matrix of SiO2 (Quartz) and Al2O3 (Clay minerals)
Calamites (Fossilized Horsetail)
Calamites suckowii (Family: Calamitaceae)
Shale or Mudstone (Based on appearance)
Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)
Petrified Wood
Silicified wood, primarily composed of Quartz (SiO2)
Fossilized Shark Tooth
Carcharodon carcharias (fossilized) / Hydroxyapatite permineralized with silica or iron
Quartz (Crystal Point/Fragment)
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Jasper
Jasper (Silicon Dioxide, SiO2)
Magnetite (Small Granule)
Magnetite (Fe3O4)
Amber
Succinite (C10H16O)
Sandstone with Ironstone Banding
Clastic Sandstone (composed of Quartz with Hematite/Limonite bonding)
Sedimentary rock with quartz veining
Laminated siltstone or mudstone with hydrothermal quartz veins
Fossilized Shark Tooth
Fossilized Elasmobranchii tooth (likely Odontaspis or Carcharias)
Megalodon Shark Tooth (Partial Fossil)
Otodus megalodon (fossilized in Calcium Phosphate/Apatite)
Petrified Wood
Silicified Wood (primarily SiO2 - Silicon Dioxide)
Magnetite
Magnetite (Fe3O4)
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2
Limestone (Flagstone)
Fossiliferous Limestone (CaCO3)
Fossilized Shark Tooth
Scapanorhynchus (Sand Tiger Shark relative)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Banded Chert (or Banded Jasper)
Silicon Dioxide (SiO2) with Iron Oxide impurities (Hematite/Goethite)
Jasper
Silicon dioxide (SiO2)
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2AlSi3O10(OH)2)
Graywacke
Graywacke/Lithic Sandstone
Graywacke
Graywacke
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
Chert (Mudstone)
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone (Shell Fragment)
Biogenic Limestone (Calcium Carbonate / CaCO3)
Limonite Concretion
Goethite-rich Concretion (FeO(OH))
Ruby Zoisite
Anyolite (Composition of Green Zoisite, Black Tschermakite, and Red Corundum)
Fuchsite on Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities
Bumblebee Jasper
Hydrothermal Volcanic Rock (Primarily Calcite with Orpiment - As2S3, Realgar, and Pyrite)
Petrified Wood
Silicified Wood (SiO2 - Silicon Dioxide)
Red Hematite (Banded Iron Formation)
Hematite (Fe2O3)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Opaque cryptocrystalline variety of Quartz
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
Petrified Wood
Silicified Wood (primarily SiO2)