Unknown (Likely Sedimentary Or Metamorphic)

Blue-green tumbled mineral specimen

Indeterminate; possibly chrysocolla, turquoise, or azurite–malachite material

Unidentified dark green rock, possibly serpentinite

Serpentinite; chiefly serpentine-group minerals (Mg₃Si₂O₅(OH)₄), identification uncertain from the blurred image

Tumbled serpentine

Serpentine-group minerals, chiefly antigorite and lizardite; commonly Mg₃Si₂O₅(OH)₄

Rock salt (Halite)

Halite (Sodium Chloride, NaCl)

Metal Chain (Likely Steel or a Steel Alloy)

Steel (primarily iron and carbon); specific alloy unknown

Weathered iron-rich rock, possibly meteorite

Uncertain; likely goethite/hematite-rich material, with meteorite possibility

Rounded river pebble, likely basaltic rock

Fine-grained mafic igneous rock, probably basalt or andesite; exact identification requires testing

Likely industrial slag or weathered basalt

Basaltic rock; possibly iron-rich furnace slag (diagnosis uncertain from image)

Serpentinite

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

Pink Halite (Himalayan Salt)

Halite (Sodium Chloride, NaCl)

Small brown mineral/rock fragment

Indeterminate; possibly weathered quartz-rich rock, ironstone, or a sulfide mineral

Unidentifiable Rock Fragment

Himalayan Pink Salt

Halite (NaCl) with iron oxide inclusions

Halite (Rock Salt)

Sodium Chloride (NaCl)

Green copper-bearing mineral specimen, possibly chrysocolla or malachite

Tentatively chrysocolla, hydrated copper aluminosilicate; may include malachite, Cu₂CO₃(OH)₂

Likely citrine or yellow glass imitation in a silver-tone bracelet

Citrine: quartz, SiO₂; exact material cannot be confirmed visually

Green serpentine-rich stone

Serpentine-group minerals, chiefly antigorite/lizardite; possibly nephrite or chlorite-bearing rock

Tumbled amethyst with quartz and likely agate inclusions

Amethyst, purple quartz (SiO₂), with included/mixed quartz; crystalline variety of quartz

Unidentifiable blurred specimen

Cannot be determined from the image

Likely iron meteorite fragment

Unclassified Fe–Ni meteorite; possible stony-iron fragment

Iron-rich jasper or brecciated chert

Microcrystalline quartz (SiO₂) with hematite/goethite inclusions

Polished yellow-green serpentine pendant

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

Halite

Sodium Chloride (NaCl)

Halite (Rock Salt) Crust

Sodium Chloride (NaCl)

Serpentinized ultramafic rock (serpentinite)

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

Biotite granite (likely weathered granite)

Granite; quartz + feldspar + biotite, with accessory dark minerals

Malachite-bearing rock

Malachite, Cu₂CO₃(OH)₂, likely with limonite or host-rock matrix

Charoite

Charoite (Hydrated silicate of potassium, sodium, calcium, barium and strontium): (K,Sr,Ba)(Na,Ca)2[Si4O10](OH,f)·H2O

Halite (Rock Salt)

Halite (Sodium Chloride, NaCl)

Serpentine (polished serpentinite)

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

Halite (Rock Salt)

Halite (Sodium Chloride, NaCl)

Unknown dark mineral fragment

Indeterminate; possibly a dark silicate mineral or slag-like geological fragment

Polished serpentine with veined host rock

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

Serpentine pendant

Serpentinite; chiefly antigorite, lizardite, or chrysotile Mg₃Si₂O₅(OH)₄

Tumbled green serpentine (probable)

Serpentine-group minerals, chiefly antigorite/lizardite; commonly Mg₃Si₂O₅(OH)₄

Serpentinite

Serpentinite; chiefly serpentine-group minerals (antigorite, lizardite, chrysotile), with magnetite and minor chromite/talc

Jasper

SiO2

Unidentified pale mineral or rock specimen

Indeterminate; image quality prevents reliable mineral identification

Serpentinite (serpentinized ultramafic rock)

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

Tumbled serpentine

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

Tumbled serpentine or soapstone pebble

Serpentine-group minerals, chiefly antigorite/lizardite; possibly talc-rich steatite

Tumbled green stone, likely serpentine

Serpentine-group minerals, commonly antigorite or chrysotile; approximate composition Mg₃Si₂O₅(OH)₄