Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Category
Browse mineral on sedimentary specimens identified by the Rock Identifier community.
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Dendritic Agate (specifically Orange/Tumbled)
Silicon Dioxide (SiO2) with Oxide Inclusions
Conglomerate
Conglomerate
Arid Sandy Loam
Arenosols / Regosols
River Cobble (Conglomerate context)
Unconsolidated Fluvial Alluvium (comprised of various lithologies like Quartzite, Granite, or Basalt)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Ironstone Concretion (Limonite/Goethite)
Goethite-rich Concretion (FeO(OH))
Bituminous Coal (with Anthracite or Vitrinite inclusion)
Organic-rich Sedimentary Rock (Carboniferous classification)
Gneiss (Metamorphic Cobble)
Gneiss
Septarian Nodule (Dragon Stone)
Septarian concretion (composition: Calcium Carbonate / Calcite, Aragonite, and Limestone/Clay)
Raw Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
Marble
Recrystallized Carbonate Rock (CaCO3)
Quartz Geode
Silicon Dioxide (SiO2)
Green Fluorite
Calcium Fluoride (CaF2)
Hematite
Iron(III) oxide (Fe2O3)
Hematite
Iron (III) Oxide, Fe2O3
Quartz (Milky/Vein Quartz)
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz Geode
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Banded Agate
Chalcedony (Silicon Dioxide, SiO2)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Bumble Bee Jasper
Calcite-bearing Volcanic Tuff (not a true Jasper)
Moqui Marble (Moqui Ball)
Ironstone Concretion (Goethite/Hematite cemented Sandstone)
Picture Jasper
Silicon Dioxide (SiO2) - Opaque Chert/Quartzite variety
Sandstone (with Iron Oxide staining)
Arenite (primarily SiO2 with Fe2O3 staining)
Petrified Wood
Silicified wood (primarily Quartz/Chalcedony, SiO2)
Calcite
Calcium Carbonate (CaCO3)
Garnet Schist or Garnet-bearing Quartzite
Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)
Conglomerate
Conglomerate (SiO2 matrix with various silicate clasts)
White Opal (Common)
Hydrated Silica (SiO2·nH2O)
Fossilized Sand Tiger Shark Tooth
Carcharias taurus / Striatolamia macrota (mineralized as Hydroxylapatite/Francolite)
Ammonite Fossil
Ammonoidea (subclass)
Chert Nodule
Microcrystalline Silica (SiO2)
Chert (Flint)
Microcrystalline quartz (SiO2)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and mineral impurities
Laterite
Laterite (no specific mineral formula as it's a rock type)
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Gneiss
High-grade foliated metamorphic rock
Gneiss
Gneiss