Unknown (Likely Sedimentary Or Metamorphic)

Tumbled green jade (likely serpentine or dyed quartz imitation)

Possibly nephrite jade, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; visual identification is uncertain

Pale stone fragment (likely limestone)

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

Rounded tan stone, likely limestone

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

Quartz-veined metamorphic rock

Likely quartz-veined schist or gneiss; exact identification requires closer examination

Iron-stained quartz-rich rock (possibly quartzite)

Quartz-rich rock; identification as quartzite is tentative from the photograph

Unknown Rock

Unknown

Likely fossilized bone fragment

Fossil bone; exact taxon and geological age cannot be determined from the image

Iron-stained sandstone

Quartz-rich sandstone with iron-oxide staining (quartz, SiO₂; hematite/goethite, Fe₂O₃/FeO(OH))

Unknown brown-and-gold rock fragment

Undetermined; possibly iron-stained quartz, mica schist, or sulfide-bearing ore

Iron-rich rock fragment (likely hematite/goethite-rich ironstone)

Ironstone, composed chiefly of iron oxides/hydroxides such as hematite (Fe₂O₃) and goethite (FeO(OH)); exact identification requires testing

Unidentified polished stone fragments

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

Greenstone / altered mafic rock

Likely serpentinite or chlorite-rich metabasalt; exact identification requires testing

Small dark mineral fragment, possibly mica or a metallic sulfide

Unidentified from image; possible biotite mica or iron sulfide (pyrite-group)

Conglomerate (likely pebble-rich rock)

Lithified conglomerate; exact composition cannot be determined from the photo

Dark green-black stone, likely serpentinite

Serpentinite; chiefly antigorite/lizardite/chrysotile group minerals, commonly with magnetite

Dark veined metamorphic rock, likely serpentinite

Serpentinite; predominantly serpentine-group minerals, possibly with magnesite or calcite veins

Rounded greenstone pebble

Likely serpentinite or chlorite-rich metamorphic rock; exact identification requires testing

Rounded pebble, likely quartzite

Quartzite (predominantly recrystallized quartz, SiO₂); identification is tentative from the image

Pink halite (rock salt)

Halite (NaCl), likely colored by trace impurities

Small weathered rock fragment

Unidentified iron-stained, fine-grained rock; exact composition cannot be determined from the image

Serpentinite (likely)

Serpentinite, composed mainly of serpentine-group minerals such as antigorite, lizardite, or chrysotile

Iron-stained sandstone

Quartz-rich sandstone, likely ferruginous sandstone

Unknown White Specimen

Unidentifiable due to blurriness

Ironstone (iron-rich sandstone or concretion)

Ferruginous sandstone, cemented by iron oxides/hydroxides such as hematite (Fe₂O₃) and goethite (FeO(OH))

Likely serpentinite

Serpentinite, composed mainly of serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite and minor chromite

Fossiliferous limestone pebble

Bioclastic limestone, composed mainly of calcite (CaCO₃); the visible holes may be fossil molds or natural cavities

Tumbled greenstone (likely serpentine or chlorite-rich basalt)

Serpentinite, principally serpentine-group minerals: Mg₃Si₂O₅(OH)₄; exact identification requires testing

Unakite (likely)

Unakite: epidote-altered granite composed chiefly of epidote, pink potassium feldspar, and quartz

Serpentine (likely serpentinized ultramafic rock)

Serpentinite; chiefly antigorite, lizardite, or chrysotile Mg₃Si₂O₅(OH)₄, often with magnetite and relict olivine/pyroxene

Pink halite (rock salt)

Halite — sodium chloride (NaCl), likely colored by impurities or inclusions

Unknown Rock Fragment

Unknown

Weathered rock pebble, possibly quartz-rich sandstone

Uncertain from the image; likely quartz-bearing sandstone with iron-oxide staining

Galena (likely)

Galena, lead sulfide (PbS)

Likely green serpentine or chlorite-rich rock

Serpentine-group minerals, commonly lizardite/magnesite-bearing serpentinite; exact identification requires testing

Likely weathered river pebble

Indeterminate lithology; possibly fine-grained sandstone, siltstone, or chert

Likely weathered iron-rich stone or concretion

Indeterminate; possibly ferruginous sandstone, ironstone, or a weathered sedimentary concretion

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

Greenstone pebble, likely serpentine or epidote-bearing rock

Probable serpentinite (serpentine-group minerals: Mg₃Si₂O₅(OH)₄), possibly epidote-rich metamorphic rock

White quartz pebble

Quartz (SiO₂), likely massive milky quartz

Banded metamorphic rock (likely gneiss or schist)

Foliated quartz–feldspar–mica rock; exact identification is uncertain from the photograph

Mica-rich schist

Mica schist, composed chiefly of muscovite and/or biotite mica with quartz and possibly feldspar

Honey-colored calcite on dark matrix

Calcite (CaCO₃), likely with an unidentified host-rock matrix