Unknown (Likely Sedimentary Or Metamorphic)

Unknown Rock Fragment

Unknown

Unidentified dark mineral/rock fragment

Indeterminate; appearance may fit a sulfide-bearing rock or iron-rich mineral

Likely granite

Granite, a coarse-grained felsic intrusive igneous rock

Tumbled greenstone (likely serpentine or chlorite-rich stone)

Serpentinite, approximately Mg₃Si₂O₅(OH)₄; exact identification requires testing

Unidentified transparent crystal or mineral fragment

Cannot be determined from the image; possible quartz, but not diagnostic

Clear faceted gemstone in an ornate metal bracelet

Unidentified transparent faceted stone; possibilities include quartz (SiO₂), zircon (ZrSiO₄), or glass—image alone cannot distinguish them

Green stone fragment (unidentified)

Undetermined; possibly serpentine or greenstone, but the image is insufficient for identification

Banded gneiss pebble

Foliated gneiss; likely quartz- and feldspar-rich, with dark mica or amphibole bands

Unknown Rock Specimen

Tumbled dark green stone, likely serpentinite or greenstone

Serpentinite (antigorite/lizardite-rich), or chlorite–amphibole greenstone

Possible iron-rich sulfide ore fragment

Unidentified sulfide, possibly pyrite-rich material (FeS₂); image is insufficient for a firm identification

Weathered greenstone (likely serpentinite or chlorite-rich metamorphic rock)

Serpentinite/chlorite schist; commonly dominated by serpentine-group minerals, Mg-rich chlorite, talc, and magnetite

Weathered, light-colored rock (specific identification uncertain)

Possibly granitic rock; mineral species cannot be identified reliably from the image

Black stone bead strand (possibly black onyx or hematite)

Unidentifiable from the image; candidates include chalcedony (SiO₂, black onyx) or hematite (Fe₂O₃)

Tumbled stone

Unknown

Small fossil shell fragment, likely a foraminiferal or other marine microfossil

Unidentified calcareous fossil; exact taxon cannot be determined from the image

Possible fossil tooth or bone fragment

Indeterminate fossilized vertebrate material; species cannot be identified reliably from this image

Unidentified rounded mineral/rock fragment

Indeterminate; likely a weathered quartz-rich stone or iron-stained granite fragment

Faceted garnet bead necklace

Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃); exact species cannot be confirmed from the image

White druzy quartz pendant with a blue crystal accent

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

Likely rough green-blue glassy mineral fragment

Unidentified; the image is insufficient to distinguish a natural mineral from industrial slag or glass

Greenstone / serpentine-rich metamorphic rock

Likely serpentinite, composed mainly of serpentine-group minerals (antigorite, lizardite, or chrysotile), with possible magnetite and chlorite

Polished serpentine (likely green serpentine)

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; composition varies

Possible ironstone concretion

Iron-oxide-rich concretion, likely hematite/goethite; exact identification is uncertain from the photo

Polished, carved gemstone (possibly dyed agate or glass-like material)

Unconfirmed from the image; no specific mineral can be identified reliably

Polished greenstone (likely serpentinite or green granite)

Probably serpentinized ultramafic rock, chiefly serpentine-group minerals; exact identification requires testing

Tumbled green-and-white stone, likely serpentine

Serpentinite; mainly serpentine-group minerals, Mg₃Si₂O₅(OH)₄, with possible magnesite or talc

Likely quartz-rich rocks

Possibly massive quartz (SiO₂); the photo is insufficient for a confident identification.

Small stone fragments

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

Small pale-green stone, possibly serpentine or quartz

Undetermined from the image; no diagnostic features confirm a specific mineral

Tumbled, mottled stone (possibly jasper or another ornamental rock)

Undetermined from the photograph; visual appearance is insufficient for a reliable species identification

Chalk or soft limestone fragment

Calcite-rich limestone; primarily calcium carbonate (CaCO₃)

Small dark rock fragment (unidentified)

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

Assorted rock and mineral specimens

Multiple unidentified specimens; individual mineral and rock names cannot be determined from this image

Likely blue mineral or tumbled stone

Unidentified; the image is too blurry for reliable identification

Serpentinite (likely antigorite-rich)

Serpentinite; chiefly serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄, with magnetite, carbonate, and possible chlorite/talc

Serpentinite (likely antigorite-rich)

Serpentinite; hydrated Mg-rich silicate minerals, chiefly antigorite (Mg3Si2O5(OH)4), with possible chrysotile/lizardite and magnetite

Light-colored, fine-grained stone (possibly sandstone)

Unidentified rock; appearance is consistent with quartz-rich sandstone, but the image is insufficient for a firm identification

Small pale-yellow crystal, possibly quartz

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

Vesicular volcanic rock (likely pumice)

Pumice, a highly vesicular volcanic glass; exact identification is uncertain from the image

Small dark, polished stone—possibly hematite or magnetite

Indeterminate from the photograph; candidates include hematite (Fe₂O₃) and magnetite (Fe₃O₄)

Likely iron-rich rock fragment

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