Bumblebee Jasper (technically a type of Agate/Anhydrite)
Calcite and Anhydrite with inclusions of Realgar and Orpiment (As2S3)
sedimentary
Category
Mineral, Sediment
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Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Banded Sandstone
Clastic Sedimentary Sandstone
sedimentary
Concretion
Calcareous or ferruginous concretion
sedimentary
Sandstone concretion
Arenite sedimentary rock (concretion/nodule)
sedimentary
Concretion
Sedimentary Concretion (e.g., Siderite or Ironstone)
sedimentary
Banded Sandstone (River Pebble)
Clastic Sedimentary Rock (primarily Quartzite and Feldspar grains)
sedimentary
Quartz Grain
Silicon Dioxide (SiO2)
mineral
Fossilized Shark Tooth (Megalodon or Carcharocles fragment)
Elasmobranchii (Fossilized tooth root / crown section)
fossil
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Shark Tooth Fossil
Carcharocles megalodon or similar extinct shark tooth
fossil
Shark Tooth Fossil
Carcharodon / Otodus fossilized tooth (Calcium Phosphate / Hydroxyapatite)
fossil
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Quartz Pebble (Yellow Quartz / Quartzite Pebble)
Silicon Dioxide (SiO2)
mineral
Banded Sandstone
Quartz Arenite (with iron oxide banding)
sedimentary
Petrified Wood
Silicified Wood (SiO2 as Quartz/Chert/Chalcedony)
sedimentary
Shale with Coprolite influence
Argillaceous sedimentary rock (Shale/Mudstone)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
sedimentary
Stream-Rounded Shale or Mudstone
Argillaceous sedimentary rock
sedimentary
Gold Flake (Placer Gold)
Native Gold (Au)
mineral
Sandstone Concretion
Septarian Concretion (Nodule)
sedimentary
Kyanite
Al2SiO5
mineral
Petrified Wood
Silicified Wood (mainly Quartz / SiO2)
fossil
Water and Silt (Sedimentary Environment)
Suspended Sediment / H2O (dihydrogen monoxide)
sedimentary
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Ironstone Concretion
Siderite or Hematite Concretion
sedimentary
Yellow jasper (likely ocean jasper or brecciated jasper)
Jasper, microcrystalline quartz (SiO₂) with iron-oxide staining and dark mineral veins
mineral
Limonite (Ironstone) pseudomorph
Limonite (Hydrous ferric oxide), FeO(OH)·nH2O
mineral
Shale
Lutaceous sedimentary rock
sedimentary
Fossilized Shark Tooth (Fragment)
Elasmobranchii gen. et sp. indet.
fossil
River Pebble (Gravel)
Rounded clastic sediment
sedimentary
Amber with dark mineral/organic inclusions
Fossilized plant resin (amber; chiefly polymerized diterpenoid resin)
gemstone
Quartz (Yellow/Citrine variety)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Quartz Pebble (Grit)
Silicon Dioxide (SiO2)
mineral
Banded mica schist
Mica schist, chiefly muscovite/biotite with quartz and feldspar
metamorphic
Fossilized Shark Tooth (Fragment)
Elasmobranchii gen. indet.
fossil
Ironstone Concretion
Siderite or Hematite-rich Concretion (FeCO3 / Fe2O3)
sedimentary
Ironstone Concretion
Goethite-rich Siltstone / Siderite (FeCO3)
sedimentary
Conglomerate
Conglomerate
sedimentary
Sandstone Concretion
Sandstone (Sedimentary Rock) with silica or calcite cement
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil