Unknown

Polished fossil gastropod shell

Fossilized gastropod (snail) shell; exact taxon cannot be determined from the image

Small dark rock fragment (unidentified)

Undetermined; the image does not show enough detail for reliable identification.

Fossil-bearing sedimentary rock (possible bone or shell fossil)

Unidentified fossiliferous sedimentary matrix; exact fossil and host rock cannot be determined from the image

Quartz-rich rock, possibly milky quartz with iron staining

Predominantly silicon dioxide (SiO₂); exact rock type cannot be determined from the photo

White tumbled stone, possibly quartz or marble

Unidentified; appearance alone cannot distinguish quartz (SiO₂) from calcite-rich marble (CaCO₃).

Quartz-rich stone fragment

Likely quartz (SiO₂), though the image is too dim to identify confidently

Small pale stone, possibly limestone

Unidentified carbonate rock; calcite-rich limestone is one possibility

Crushed stone aggregate

Mixed lithic aggregate; individual fragments cannot be identified from the image

Small yellow-brown stone, possibly iron-stained quartz or chert

Undetermined; visual evidence is insufficient for a confident identification

Likely water-worn bone or fossil fragment

Indeterminate fossilized bone; species and age cannot be determined from the image

White druzy quartz pendant with a blue crystal accent

Quartz (SiO₂); the blue material is not identifiable from the image

Small iron-rich pebble, possibly hematite or ironstone

Indeterminate from the image; possible hematite (α‑Fe₂O₃) or goethite (α‑FeO(OH))

Likely weathered copper-bearing rock

Indeterminate from the photo; possibly malachite-bearing rock (Cu₂CO₃(OH)₂)

Botryoidal quartz on matrix

Quartz, SiO₂, with possible iron-oxide-stained host rock

Possible fossilized tooth or bone fragment

Unidentified fossil; the image is too blurred for a reliable taxonomic identification

Rounded beach or river pebble

Unidentified fine-grained rock; composition cannot be determined from the image

Dark, coarse-grained rock; likely gabbro or diorite

Undetermined mafic-to-intermediate intrusive igneous rock; exact identification requires closer examination

Cream-colored tumbled stone, possibly calcite

Unidentified; appearance alone is insufficient to distinguish calcite from other pale minerals or stone

Pale stone fragment (likely limestone)

Likely calcite-rich limestone (CaCO₃); the image is insufficient for a definitive identification

Dark, weathered rock fragment (likely basalt or andesite)

Cannot be reliably identified from the photograph; possibly basaltic to andesitic volcanic rock

Fossil-bearing rock, possibly a fossiliferous sandstone or limestone

Unidentified sedimentary matrix with fossil impressions; exact fossil and rock cannot be determined from the image

Likely iron-rich rock fragment

Indeterminate; possibly limonite/goethite-stained rock, with no diagnostic features visible

Weathered iron-rich concretion or sedimentary rock

Likely ferruginous sandstone or ironstone concretion; exact identification is not possible from the image alone

Green calcite-bearing rock (likely calcite on a pale matrix)

Calcite, CaCO₃; exact matrix and green coloring cannot be determined from the image

Rounded river pebble

Unidentified lithic pebble; exact rock type cannot be determined from the image

Small rounded mineral/rock fragment

Indeterminate; possibly quartz-rich stone or feldspar

Polished amber-colored stone, possibly chert or jasper

Uncertain from image; likely microcrystalline quartz (SiO₂) if chert/jasper

Rounded river pebble, likely quartz-rich stone

Unidentified lithic clast; exact mineralogy cannot be determined from the image

Fossilized bivalve shell

Bivalvia; likely a preserved shell or shell cast composed mainly of calcium carbonate (CaCO₃)

Small iron-rich rock fragment (possibly hematite or limonite)

Likely iron oxides/hydroxides: hematite (Fe₂O₃) and/or goethite–limonite; identification is uncertain from the image

Yellow cabochon, likely amber or yellow glass/resin

Unconfirmed; possibly amber (fossilized tree resin, an amorphous organic material)

Rounded tan stone, likely limestone

Probably micritic limestone (calcite, CaCO₃); identification is uncertain from the image alone

Weathered sandstone slab

Quartz-rich sandstone; exact composition cannot be confirmed from the image

Mottled rounded stone, possibly a weathered concretion

Unidentified lithic pebble; composition cannot be determined from the photograph

Small pale-yellow crystal, possibly quartz

Unidentified translucent mineral; quartz (SiO₂) is one possibility, but the image is insufficient for reliable identification.

Pistachio-green and dark mineral-bearing rock, possibly serpentine with dark inclusions

Undetermined; the image is insufficient for reliable species-level identification

Small brown mineral fragment

Unidentified; the image lacks enough detail for a reliable species-level identification

Likely iron-rich concretion or weathered rock pebble

Uncertain from the image; possibly an iron-oxide-cemented concretion (goethite/hematite)

Likely weathered quartz-rich rock fragment

Indeterminate; possibly quartz-bearing sandstone or chert with iron-oxide staining

Unidentified polished stone fragments

Indeterminate; likely mixed lapidary specimens, possibly jasper, agate, or quartz-bearing rock

Iron-rich conglomerate or breccia (tentative)

Poorly sorted lithic conglomerate/breccia, with iron-oxide staining; exact composition cannot be determined from the photo

Halite

Halite (NaCl)