Indeterminate

Small tumbled blue-green stone, possibly chrysocolla or turquoise

Indeterminate copper-bearing mineral; possible chrysocolla (Cu₂H₂Si₂O₅(OH)₄·nH₂O) or turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O)

Green glassy mineral specimen, likely nephrite or serpentine

Indeterminate from image; possible nephrite jade (interlocking amphibole, chiefly Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂) or green serpentine (Mg₃Si₂O₅(OH)₄)

Unidentified small mineral specimen

Undetermined from the image

Blue-gray stone pebble (possibly slag or a weathered rock)

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

Smooth gray pebbles

Unidentified rounded rock fragments; composition cannot be determined from the image

Likely polished or naturally smoothed pebble with a pale mineral patch

Undetermined; possibly a dark volcanic rock with a quartz or feldspar inclusion

Calcite-rich limestone (likely crystalline limestone/marble)

Calcite, CaCO₃; likely recrystallized carbonate rock

Rounded quartz-rich pebble

Likely microcrystalline quartz (SiO₂), possibly milky quartz or a pale quartzite fragment

Fossilized Bone Chunk

Permineralized Vertebrate Bone (indeterminant)

Fossil oyster shell

Fossilized bivalve, likely an oyster (family Ostreidae); exact genus and age are indeterminable from the image