Metamorphic Rock (For Nephrite And Some Jadeite); Mineral (For Jadeite)

Tumbled green-yellow stone, likely serpentine or nephrite jade

Serpentine-group mineral aggregate, commonly lizardite/antigorite; possible nephrite (interlocking tremolite-actinolite)

Serpentine

Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Gneissic River Cobble

Gneiss

Tumbled green stone, likely serpentine

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

Tumbled green stone, likely serpentine

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

K-Feldspar (Potassium Feldspar)

Orthoclase / Microcline (KAlSi3O8)

Gneiss

High-grade Metamorphic Gneiss

Likely serpentinite (green serpentine rock)

Serpentinite, composed chiefly of serpentine-group minerals (antigorite, lizardite, and/or chrysotile)

Tumbled dark green stone, likely serpentine

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

Schist

Schist (metamorphic rock)

Green serpentine-rich rock (possibly serpentinite)

Serpentinite, composed chiefly of serpentine-group minerals (e.g., lizardite, antigorite, or chrysotile)

Serpentine (Serpentinite)

Serpentinite / (Mg,Fe)3Si2O5(OH)4

Gneiss

Gneissic Metamorphic Rock

Polished green-and-white stone, likely serpentine or nephrite jade

Serpentine-group minerals, commonly antigorite/lizardite; possible nephrite (interlocking actinolite–tremolite)

Tumbled green stone, likely serpentine

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

Garnet (Almandine/Pyrope series)

Garnet Group - X3Y2(SiO4)3

Tumbled green stone, likely serpentine or nephrite jade

Serpentine-group minerals (commonly antigorite/lizardite), possibly nephrite jade (intergrown tremolite–actinolite)

Engraved green stone worry pebble

Likely nephrite jade (tremolite–actinolite series); identification is uncertain from the image

Yellow Jade

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Tumbled serpentine

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

Serpentine (variety: Serpentine Rock)

Antigorite, Lizardite, or Chrysotile; formula generally (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Tumbled green stone, likely serpentine

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

Gneiss (with Quartzite layers)

Gneissic Metamorphic Rock

Likely garnet crystal fragment

Garnet-group mineral, possibly almandine (Fe₃Al₂(SiO₄)₃)

Rounded greenstone pebble

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Gneiss

Gneiss (Metamorphic Rock)

Gneiss

Gneiss (High-grade metamorphic rock)

Polished green serpentinite

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

Likely garnet gemstone

Garnet-group silicate; species cannot be determined from the photo (common red varieties include almandine, Fe₃Al₂(SiO₄)₃, and pyrope, Mg₃Al₂(SiO₄)₃).

Gneiss (with Mica and Quartz)

Gneissic Metamorphic Rock

Serpentine (New Jade)

Antigorite/Lizardite [Mg3Si2O5(OH)4]

Green glass cabochon or tumbled stone

Indeterminate; likely man-made glass, possibly aventurine glass rather than a natural mineral

Tumbled green-and-white stone, likely serpentine

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

Greenish quartz-bearing rock, possibly serpentine or aventurine

Tentatively quartz (SiO₂) with green inclusions; exact identification requires testing

Serpentine (serpentinite)

Serpentine-group minerals: mainly antigorite, lizardite, and/or chrysotile; commonly with magnetite and carbonate

Greenstone / serpentinite-like metamorphic rock

Probable serpentinite-rich greenschist; commonly dominated by serpentine-group minerals, chlorite, actinolite, and magnetite

Polished green stone, likely serpentine

Serpentinite; chiefly antigorite/lizardite, Mg₃Si₂O₅(OH)₄

Greenstone (likely chlorite- or actinolite-rich metabasalt)

Metamorphosed mafic volcanic rock; commonly greenschist-facies basalt, composed chiefly of chlorite, actinolite, epidote, and albite

Banded Gneiss

Gneiss (Metamorphic Rock)

Amber (likely a small rough amber piece)

Fossilized plant resin; amber is an organic mineraloid, not a crystalline mineral