Mineral Group

Tumbled yellow-green chalcedony or serpentine

Microcrystalline quartz (SiO₂), possibly chrysoprase; alternative: serpentine-group mineral

Likely epidote-bearing rock or weathered chalcopyrite specimen

Epidote-group mineral, possibly with chalcopyrite; identification uncertain from image

Likely serpentine and polished hematite

Serpentine-group minerals, commonly antigorite/lizardite; hematite, Fe₂O₃

Phantom Quartz with Chlorite and Hematite inclusions

Silicon Dioxide (SiO2) with inclusions of Chlorite group minerals and Hematite (Fe2O3)

Garnet

Garnet Group (Silicate mineral); general formula X3Y2(SiO4)3

Serpentine (Healerite variety)

Serpentine group, Mg3Si2O5(OH)4

Greenstone / Epidosite

Metamorphosed Mafic Igneous Rock (Epidote-Chlorite group)

Polished green stone, likely serpentine

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

Tumbled serpentine

Serpentinite; chiefly antigorite, lizardite, and/or chrysotile serpentine-group minerals

Likely serpentinite

Serpentinite, composed mainly of serpentine-group minerals (such as antigorite or chrysotile)

Blue Apatite

Apatite Group (Ca5(PO4)3(F,Cl,OH))

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Fossilized bivalve shell (small cockle-type shell)

Bivalvia; exact species cannot be determined from the image

Epidote

Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)

Spinifex Textured Komatiite

Ultramafic Komatiite

Serpentinite

Serpentinite, a rock composed mainly of serpentine-group minerals (approximately Mg₃Si₂O₅(OH)₄)

Polished serpentine-rich stone

Serpentinite, primarily serpentine-group minerals (antigorite, lizardite, or chrysotile)

Blue apatite

Apatite-group phosphate, commonly fluorapatite (Ca5(PO4)3F)

Pink Garnet (likely Almandine or Rhodolite)

Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)

Garnet

Garnet group species (likely Almandine, Fe3Al2(SiO4)3)

Garnet

Garnet Group (often Pyrope or Almandine); X3Y2(SiO4)3

Garnet (likely Almandine or Pyrope)

Garnet Group, Nesosilicates (Complex chemistry, e.g., Almandine: Fe3Al2Si3O12)

Red Garnet (likely Almandine or Pyrope)

Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)

Likely serpentinite (greenstone pebble)

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

Serpentine-rich greenstone

Serpentinite, commonly dominated by serpentine-group minerals (antigorite, lizardite, chrysotile)

Serpentine-rich metamorphic rock

Serpentinite; chiefly antigorite/lizardite Mg₃Si₂O₅(OH)₄, possibly with talc, chlorite, magnetite, or carbonate

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, Mg3Si2O5(OH)4)

Serpentine (Serpentinite)

Serpentinite / Antigorite-Lizardite group (Mg3Si2O5(OH)4)

Schorl (Black Tourmaline) in Quartz/Feldspar Matrix

NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)

Garnet Beads

Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)

Tumbled serpentinite (likely)

Serpentinite; chiefly antigorite/lizardite/chrysotile, Mg3Si2O5(OH)4, with accessory magnetite and possibly chromite

Polished serpentine pebble

Serpentinite; primarily serpentine-group minerals (e.g., antigorite, lizardite, or chrysotile)

Chondrite

Ordinary Chondrite (L or H group)

Chondrite Meteorite

Ordinary Chondrite (L or H Group)

Serpentinite (likely serpentine-rich rock)

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

Serpentinite

Serpentinite, dominated by serpentine-group minerals (antigorite, lizardite, chrysotile)

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

Black Tourmaline in Quartz and Feldspar Matrix

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) with Quartz and Feldspar

Serpentinite

Serpentine group minerals ((Mg, Fe)3Si2O5(OH)4)

Vesicular Basalt (Lava Rock)

Vesicular Basalt (comprising plagioclase feldspar and pyroxene group minerals)

Tumbled green stone, likely serpentine

Serpentinite; chiefly serpentine-group minerals (antigorite, lizardite, chrysotile)

Basalt

Extrusive Igneous Rock