Unknown (Likely Sedimentary Or Metamorphic)

Dark veined metamorphic rock, likely serpentinite

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

Tumbled greenstone (likely serpentine or chlorite-rich basalt)

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

Unidentified Small Rock

Unknown

Likely serpentinite

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

Greenstone pebble, likely serpentine or epidote-bearing rock

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

Dyed red crystal aggregate, likely quartz or salt

Uncertain; possibly dyed quartz (SiO₂) or halite (NaCl)

Serpentine (likely serpentinized ultramafic rock)

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

Small gray translucent stone, possibly quartz or glassy mineral

Uncertain; likely microcrystalline quartz (SiO₂), but the image is insufficient for definitive identification

Unknown brown-and-gold rock fragment

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

Unidentified green-gray mineral/rock fragment

Indeterminate from image; possible serpentine-bearing rock or chrysocolla/azurite-bearing material

Green-and-white terrazzo (likely serpentine/marble aggregate)

Composite decorative stone; probable serpentinite (Mg₃Si₂O₅(OH)₄) with white calcite marble fragments in cementitious matrix

Polished serpentine (likely bowenite/antigorite)

Serpentine-group minerals, chiefly antigorite or lizardite: Mg₃Si₂O₅(OH)₄

Tumbled serpentine (likely antigorite-rich)

Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄

Likely green serpentine or chlorite-rich rock

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

Tumbled dark green stone, likely serpentine

Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄)

Unidentified dark mineral/rock fragment

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

Tumbled serpentinite (likely)

Serpentinite; chiefly serpentine-group minerals (antigorite, lizardite, chrysotile), commonly with magnetite and carbonate

Indeterminate metallic mineral fragments

Possibly pyrite, chalcopyrite, or metallic sulfide-bearing rock

Tumbled serpentine (likely)

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; approximate formula Mg₃Si₂O₅(OH)₄

Uncertain greenish stone, possibly serpentine or altered basalt

Serpentine-group minerals, commonly Mg₃Si₂O₅(OH)₄; identification is provisional from the photograph

Veined dark metamorphic rock, likely serpentinite

Serpentinite, predominantly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), with possible quartz, calcite, and magnetite veins

Unknown Rock Fragment

Unknown

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

Serpentinite, commonly dominated by serpentine-group minerals; exact identification requires testing

Serpentinized ultramafic rock with magnesite

Serpentinite, chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), with likely magnesite (MgCO₃) and minor chromite/magnetite

Tumbled green stone, likely serpentine

Serpentinite; principally serpentine-group minerals, Mg₃Si₂O₅(OH)₄

Unable to Identify (Image Obscured)

Note regarding image quality

Likely botryoidal calcite or aragonite specimen

Calcite (CaCO₃), possibly aragonite (CaCO₃)

Polished metallic ore/mineral specimen, possibly pyrite-bearing schist

Indeterminate from image; likely pyrite (FeS₂) with quartz and/or mica in a metamorphic matrix

Greenstone (likely serpentinite or altered basalt)

Serpentinite, chiefly serpentine-group minerals; possibly chlorite- or actinolite-bearing greenschist

Rounded greenstone river cobble

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

Serpentinized ultramafic rock (likely serpentinite)

Serpentinite; chiefly antigorite/lizardite/chrysotile, commonly after peridotite (olivine–pyroxene)

Unknown Rock Specimen

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

Tumbled banded stone, likely serpentine or chlorite-rich rock

Probable serpentinite (serpentine-group minerals: Mg₃Si₂O₅(OH)₄), possibly greenstone

Bituminous coal (likely)

Coal, primarily carbon with macerals and variable mineral matter; commonly represented by approximate composition C-rich organic material

Undetermined Due to Blur (Possible Flesh-Tone Mineral)

Unknown (Insufficient Visual Clarity)

Tumbled stone

Unknown

Tumbled greenstone (likely serpentine or chlorite-rich stone)

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

Serpentinite (likely)

Serpentine-group minerals, chiefly antigorite/lizardite; commonly with magnetite and relic olivine/pyroxene

Serpentinite (likely serpentinized ultramafic rock)

Serpentine-group minerals, chiefly lizardite, chrysotile, and/or antigorite; commonly derived from peridotite