Mineral, Sediment

Red-and-gray jasper (likely orbicular or brecciated jasper)

Jasper, microcrystalline quartz (SiO₂) with iron-oxide pigments

Tumbled blue-gray stone beads, likely labradorite or dyed quartz

Probable labradorite (plagioclase feldspar; approximately NaAlSi₃O₈–CaAl₂Si₂O₈), though exact identification requires testing

Amber

Succinite (a common variety of fossilized resin)

Milky quartz pebble

Quartz (silicon dioxide, SiO₂)

Milky quartz pebble

Quartz (SiO₂)

Polished/tumbled brown stone, likely brown jasper or chert

Microcrystalline quartz (SiO₂), probably jasper/chert; exact identification requires testing

Polished red jasper (likely brecciated or orbicular jasper)

Jasper, microcrystalline quartz (SiO₂) with iron-oxide inclusions

White quartz pebble (likely milky quartz)

Quartz, silicon dioxide (SiO₂)

Polished brown jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), commonly containing iron-oxide impurities

Tumbled jasper or chert

Microcrystalline quartz (SiO₂), likely iron-stained jasper/chert

Small quartz-rich pebble, possibly milky quartz

Quartz (SiO₂), likely massive or microcrystalline quartz

Pyrite nodule (probable iron sulfide concretion)

Pyrite, FeS₂, likely weathered within a sedimentary concretion

Red jasper

Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides

Polished red jasper

Jasper, microcrystalline quartz (SiO₂), colored by iron oxides and commonly mixed with chalcedony or other minerals

Tumbled brown jasper pebble

Jasper, microcrystalline quartz (SiO₂), commonly with iron-oxide impurities

Petrified Wood

Silicified wood (primarily SiO2 - Silicon Dioxide)

Iron-rich concretion or weathered ironstone nodule

Goethite–hematite-rich limonite concretion (tentative)

Shungite

Shungite (Amorphous Carbon)

Blue sea glass or blue glassy mineral fragment

Uncertain; likely man-made soda-lime glass, not a natural mineral

Tumbled quartz-rich stone, possibly granite or sandstone

Uncertain from image; likely quartz (SiO₂) with iron-oxide and feldspar impurities

Red jasper

Jasper (microcrystalline quartz, SiO₂), iron-oxide-rich variety

Fossilized Wood (Petrified Wood)

Silicified Wood (primarily quartz/chalcedony replacing organic matter)

Ironstone concretion (possibly limonite/goethite-bearing)

Limonite, a mixture of hydrated iron oxides, commonly including goethite (α-FeO(OH))

Tektite (Indochinite)

Tektite (High-silica impactite glass)

Fossilized mammalian tooth fragment

Likely a fossil molar or premolar; exact taxon cannot be determined from the image

Sand Grain (Silica/Quartz Grain)

Silicon Dioxide (SiO2)

Garnet-bearing metamorphic rock, likely mica schist

Biotite–garnet schist; commonly includes quartz, feldspar, biotite, and almandine garnet

Polished amber-like organic gemstone

Amber (fossilized tree resin), commonly succinite; exact identification is uncertain from the image

Weathered gray-brown chert (flint)

Microcrystalline quartz, SiO₂ (chalcedony/chert)

Tan chert or fine-grained sandstone fragment

Microcrystalline quartz (SiO₂), possibly chalcedony-rich chert

Petrified Wood

Fossilized plant material (Silicon dioxide - SiO2)

Petrified Wood (Silicified Fossil)

Silicified Wood (SiO2)

Fossil scallop shell

Bivalvia, likely family Pectinidae; exact species cannot be determined from the image

Foliated mica-rich metamorphic rock, likely schist

Mica schist; chiefly quartz, feldspar, muscovite/biotite, with possible amphibole or sulfide minerals

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood

Silicified wood (Quartz, SiO2)

Weathered mica-rich metamorphic rock, likely schist

Mica schist, probably muscovite–biotite schist with quartz and feldspar

Tumbled or broken translucent quartz-like fragment

Quartz (silicon dioxide, SiO₂), possibly chalcedony or calcite

Petrified Wood

Silicified Wood / Chalcedony (SiO2)

Green Jasper

Microcrystalline Quartz (SiO2)

Fossiliferous Concretion

Septarian Concretion containing Brachiopods/Crinoids

Bivalve Fossil (Clam Fossil)

Class Bivalvia (likely Gryphaea or similar Order)