Mineral, Sediment

Biotite schist (probable)

Mica schist, chiefly quartz + feldspar + biotite mica

Possible iron-stained quartzite or sandstone fragment

Quartzite (mostly SiO₂), possibly ferruginous sandstone

Ironstone (iron-oxide-rich rock)

Ironstone, composed mainly of hematite (Fe₂O₃) and/or goethite (FeO(OH)); exact minerals cannot be confirmed visually

Fossil Shark Tooth

Carcharodon or Carcharias fossil (Vertebrate Fossil)

Yellow Jasper

Silicon Dioxide (SiO2) - variety Jasper

Ironstone concretion (possible pyrite-bearing nodule)

Iron-oxide-rich concretion, chiefly goethite/hematite; composition cannot be confirmed from the image

Rounded brown cobble, likely weathered sandstone or iron-rich sedimentary rock

Indeterminate; possibly ferruginous sandstone or ironstone

Likely weathered iron-rich stone or ironstone pebble

Goethite/hematite-bearing ironstone (tentative; exact identification requires testing)

Limestone with Chert Nodules

Sedimentary Calcium Carbonate (CaCO3) with Microcrystalline Silica (SiO2) inclusions

Fossilized Shark Tooth

Lamniformes (order) fossil

Likely red-brown shale or mudstone

Fine-grained sedimentary rock, probably ferruginous shale/mudstone; exact identification is uncertain from the photo

Metallic sulfide ore fragment, possibly pyrite-bearing rock

Indeterminate; likely pyrite (FeS₂) in a sulfide-rich matrix

Fossil brachiopod or bivalve shell

Likely a ribbed brachiopod, possibly Spiriferida or Productida; exact identification requires locality and shell details

Fossilized Shark Tooth

Chondrichthyes (Class) fossilized tooth

Mammoth Tooth

Mammuthus primigenius (Tooth fragment)

Banded river pebble, likely gneiss

Foliated quartz–feldspar rock, possibly banded gneiss

Dinosaur Bone (Fossilized)

Permineralized Bone (CaCO3 or SiO2 after Hydroxylapatite)

Likely chert or weathered flint

Microcrystalline quartz (SiO₂), probably ferruginous or glauconitic chert

Green Slate or Metamorphic Rock with Moss/Lichen

Metamorphic rock / Phyllite or Slate variant

Rounded gray pebble, likely fine-grained sandstone or weathered granite

Probable quartz-rich sandstone; exact identification requires texture and hardness tests

Tumbled brecciated jasper (likely ocean or mahogany jasper)

Jasper—microcrystalline quartz/chalcedony, SiO₂, with iron-oxide inclusions

Tumbled jasper (likely mookaite or brown/orange jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide inclusions

Polished septarian nodule

Calcite–aragonite–barite septarian concretion, commonly in a claystone or limestone matrix

Banded jasper (likely brecciated jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral impurities

Tumbled picture jasper

Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay inclusions

Garnet

Garnet group (X3Y2(SiO4)3)

Fossilized Shark Tooth

Chondrichthyes (Class) - likely Carcharodon or Otodus genus

Red jasper (likely iron-rich chert)

Microcrystalline quartz, SiO₂, colored by iron oxides

Oyster Shell (Aragonite/Calcite)

Calcium Carbonate (CaCO3)

Weathered schistose metamorphic rock

Likely mica schist or phyllitic schist; composition commonly quartz, muscovite/biotite, and feldspar

Fossilized bivalve shell

Recrystallized calcium-carbonate shell, commonly fossil oyster or clam (Bivalvia)

Sandstone (Quartzite-leaning)

Arenite (primarily SiO2)

Ironstone Concretion

Ironstone (Siderite/Limonite/Goethite)

Petrified Wood

Silicified Wood (primarily SiO2)

Fossilized echinoid (sea urchin), likely a flint/chalk-associated test

Echinoid fossil; likely a regular echinoid such as Echinocidaris or related taxon, composed mainly of recrystallized calcite (CaCO₃)

Concretionary Sandstone

Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)

Petrified Wood

Silicified Wood (primarily Quartz/SiO2)

Bumble Bee Jasper

Calcite-bearing Volcanic Tuff (not a true Jasper)

Fossilized shell fragment, likely brachiopod or bivalve

Calcareous fossil; commonly calcite/aragonite (CaCO₃), but exact taxon is uncertain from the image

Fossil shell fragment, likely brachiopod or bivalve

Indeterminate fossilized carbonate shell; possibly Spiriferida (brachiopod)

Foliated metamorphic rock, likely mica schist

Muscovite–biotite schist with quartz and feldspar

Tumbled jasper pebble (likely ocean jasper or brecciated jasper)

Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions