Shale creek bed
Shale (fine-grained clastic sedimentary rock)
Sedimentary
Category
Organic (Sedimentary Context)
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Magnetite
Magnetite (Fe3O4)
Mineral
Green Chalcedony (Batu Akik)
Silicon Dioxide (SiO2)
gemstone
Gneiss (specifically a water-worn pebble)
Gneiss
metamorphic
Fossiliferous Shale
Carbonaceous Shale (with potential plant/aquatic fossils)
sedimentary
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Black Limestone
Bituminous Limestone (Calcium Carbonate - CaCO3)
sedimentary
Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
sedimentary
Limonite (Hydrated Iron Oxide / Bog Iron)
FeO(OH)·nH2O
Mineral (Sedimentary context)
Unidentifiable Rock Fragment
Uncertain
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Sandstone
Sedimentary rock containing invertebrate fossils
fossil
Pyrite
Iron Sulfide (FeS2)
mineral
Chert (Green Fossilized Algae or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Sea Shell (Mollusk Shell)
Calcium Carbonate (Aragonite/Calcite)
fossil
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Mineral
Chert (Jasper or Flint variant)
Chert (composed of microcrystalline quartz, SiO2)
sedimentary
Amber (Copal)
Fossilized Tree Resin
mineraloid
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite in Shale
Iron Disulfide (FeS2)
mineral
Shale
Laminated Fissile Pelite
sedimentary
Sandstone with trace fossil
Sandstone, possibly with Skolithos or similar trace fossil
sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock
sedimentary
Amber (Copal)
Succinate (Fossilized Tree Resin)
mineraloid
Fossiliferous Limestone with Rugose Coral
Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)
sedimentary
Shale
Shale (Fine-grained clastic sedimentary rock)
sedimentary
Coal (most likely Bituminous or Anthracite)
Coal (organic sedimentary rock)
Sedimentary
Shale
Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Mother of Pearl (Nacre) / Shell Fragment
Biogenic Calcium Carbonate (Aragonite and Conchiolin)
fossil
Limestone Pebble with Crinoid Fossil
Calcium Carbonate (CaCO3) - Fossiliferous Limestone
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
sedimentary
Limestone pebble
Sedimentary rock, primarily calcium carbonate (CaCO3)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Coal (likely Bituminous or Lignite)
Organic Sedimentary Rock (Carbonaceous)
sedimentary
Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
sedimentary
Limestone Pebble
Sedimentary Rock (Calcite, CaCO3)
sedimentary
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary