Mineral Group

Serpentinized ultramafic rock (probable serpentinite)

Serpentinite, dominated by serpentine-group minerals (lizardite/chrysotile/antigorite), with possible magnetite and carbonate

Polished serpentine (likely)

Serpentine-group minerals, chiefly antigorite/lizardite; commonly associated with magnetite and chromite

Weathered serpentine or serpentinite

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

Tumbled yellow-green stone, possibly serpentine

Likely serpentine-group mineral (Mg₃Si₂O₅(OH)₄); exact identification requires testing

Tumbled green stone, likely serpentine or green aventurine

Uncertain; possible serpentine-group mineral (Mg₃Si₂O₅(OH)₄) or quartz-rich aventurine

Polished pale-green stone, likely serpentine or jade

Serpentine-group mineral (commonly antigorite/lizardite), or possibly nephrite jade (tremolite–actinolite amphibole)

Tumbled green stone, likely serpentine or nephrite jade

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

Tumbled greenish chalcedony or serpentine pebble

Likely microcrystalline quartz (chalcedony, SiO₂) or serpentine-group mineral; exact identification requires testing

Tumbled green stone, likely serpentine or aventurine

Probable serpentine-group mineral (Mg₃Si₂O₅(OH)₄) or green aventurine quartz (SiO₂)

Serpentine, likely a variety of Chrysoprase (green chalcedony) or a similar translucent green mineral.

Serpentine Group Minerals (e.g., Antigorite, Lizardite) or Chalcedony (SiO2) with nickel impurities for Chrysoprase green.

Peridot (likely, based on color and appearance)

Olivine group mineral, specifically (Mg,Fe)2SiO4 (Forsterite-Fayalite solid solution series)

Tumbled pale greenish stone, likely serpentine or altered limestone

Probable serpentine-group rock (antigorite/lizardite), possibly serpentinite; identification is visual only

Tumbled serpentine

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

Tumbled serpentine or soapstone pebble

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

Trilobite Fossil

Trilobita (Class), likely Phacopid or Asaphid order

Serpentinite (likely serpentinized ultramafic rock)

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

Polished green stone, likely serpentine

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

Serpentinite (likely)

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

Polished greenstone ring/bead

Likely nephrite jade (actinolite–tremolite amphibole aggregate), possibly serpentine or bowenite

Tumbled dark green stone, likely serpentine or greenstone

Serpentine-group minerals, chiefly antigorite/lizardite; possibly chlorite-rich greenstone

Mixed rough mineral specimens, likely calcite with prehnite/zeolite

Calcite (CaCO₃), with probable prehnite (Ca₂Al₂Si₃O₁₀(OH)₂) and/or zeolite-group minerals

Blue polished/tumbled stone, likely blue apatite or dyed quartz

Apatite-group mineral, commonly fluorapatite (Ca5(PO4)3F); exact identification requires testing

Tumbled green stone, likely serpentine

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

Tumbled green stone, possibly serpentine or nephrite jade

Tentative: serpentine-group mineral (Mg₃Si₂O₅(OH)₄) or nephrite, a fibrous amphibole aggregate

Likely tumbled green stone (possibly serpentine or green aventurine)

Indeterminate from image; candidates include serpentine-group minerals or quartz-rich green aventurine

Tumbled green stones, likely green aventurine or serpentine

Quartzite with fuchsite inclusions (green aventurine), or serpentine-group minerals; exact identification requires testing

Tumbled serpentine (likely)

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

Serpentinite

Serpentinite, dominated by serpentine-group minerals (chrysotile, lizardite, antigorite), commonly with magnetite and chlorite

Likely garnet (rough crystal)

Garnet group, likely almandine (Fe₃Al₂(SiO₄)₃); identification from the image is uncertain

Greenstone / serpentinite-like metamorphic rock

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

Apache Tear

Obsidian (Hydrated Volcanic Glass) - SiO2 (with impurities)

Serpentinite

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

Tumbled green stone, likely serpentine

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

Garnet-bearing granite or pegmatitic granitic rock

Coarse-grained granitoid, likely granite or pegmatite, composed mainly of quartz and feldspar with almandine/spessartine garnet and dark biotite or amphibole

Uncertain greenish stone, possibly serpentine or altered basalt

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

Tumbled stone, possibly green jasper or serpentine

Indeterminate from the photo; likely a jasper (microcrystalline quartz, SiO₂) or serpentine-group material

Olivine (peridot) grain

Olivine-group silicate, typically forsterite–fayalite solid solution: (Mg,Fe)₂SiO₄

Likely garnet

Almandine–pyrope garnet group; commonly Fe₃Al₂(SiO₄)₃ to Mg₃Al₂(SiO₄)₃

Garnet

Garnet-group silicate, likely almandine–spessartine; general formula X₃Y₂(SiO₄)₃

Green Tourmaline

Elbaite (part of Tourmaline group), Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4

Slate

Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz

Serpentine (likely serpentine-rich pebble)

Serpentine-group minerals, chiefly antigorite and/or lizardite; commonly associated with magnetite and chlorite