Mineral Group

Feldspar (specifically Orthoclase)

Potassium Aluminum Silicate (KAlSi3O8)

Pink feldspar fragment

Likely potassium feldspar (orthoclase or microcline), KAlSi₃O₈

Red Feldspar (Orthoclase)

Orthoclase Feldspar (KAlSi3O8)

Polished serpentine breccia

Serpentinite, commonly serpentine-group minerals with carbonate and magnetite

Likely garnet-bearing rock or almandine garnet fragment

Garnet group, probably almandine (Fe₃Al₂(SiO₄)₃)

Likely raw garnet crystal

Garnet-group silicate, probably almandine (Fe₃Al₂Si₃O₁₂)

Likely serpentine (serpentinite) pebble

Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; commonly with magnetite and minor carbonate

Tumbled serpentine (likely bowenite)

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

Tumbled serpentine (likely)

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

Tumbled serpentine (likely bowenite)

Serpentine-group magnesium silicate; commonly antigorite, lizardite, or chrysotile (Mg₃Si₂O₅(OH)₄)

Tumbled garnet (probable almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃; visual identification is uncertain from the image

Likely polished garnet

Garnet group; probably almandine, iron-aluminum silicate (Fe₃Al₂Si₃O₁₂)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Epidote

Ca2(Al, Fe)3(SiO4)3(OH)

Potassium Feldspar

K-Feldspar (Orthoclase/Microcline) KAlSi3O8

Pink Feldspar

Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8

Orthoclase Feldspar (Sunstone variety)

KAlSi3O8 (Potassium Aluminum Silicate)

Potassium Feldspar

K-Feldspar (Orthoclase/Microcline), KAlSi3O8

Likely serpentine-rich rock (serpentinite)

Serpentinite, composed mainly of serpentine-group minerals (e.g., lizardite, antigorite, or chrysotile); exact identification is uncertain from the image alone

Feldspar (Orthoclase / Microcline) with Quartz

KAlSi3O8 (Potassium Feldspar / Orthoclase)

Tumbled serpentine

Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄

Tumbled serpentine (likely)

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

Tumbled green serpentine (probable)

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

Small polished green stone, possibly serpentine or greenstone

Likely serpentine-rich rock; exact identification is limited by the blurred image

Serpentine (likely polished serpentine pebble)

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

Peridot (Olivine)

Olivine ((Mg,Fe)2SiO4)

Feldspar (Orthoclase)

Potassium Feldspar (KAlSi3O8)

Biotite (Black Mica)

Biotite [K(Mg,Fe)3(AlSi3O10)(F,OH)2]

Feldspathic Granite (likely Syenite or Granite Pegmatite)

Phaneritic Acidic Igneous Rock (KAlSi3O8 dominant with SiO2)

Orthoclase (Potassium) Feldspar in Quartz

KAlSi3O8 (Potassium Aluminum Silicate)

Polished/tumbled serpentine

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

Polished serpentine (likely bowenite/antigorite)

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

Tumbled serpentine

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

Red garnet cabochon ring

Garnet-group silicate, likely almandine–pyrope solid solution (X₃Y₂(SiO₄)₃)

Mica (Muscovite or Biotite)

Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)

Polished pink feldspar pebble

Orthoclase or microcline feldspar, KAlSi₃O₈

Serpentinite

Serpentinite (complex silicate mineral group (Mg,Fe)3Si2O5(OH)4)

Potassium Feldspar

K-Feldspar (KAlSi3O8)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Serpentine (likely antigorite-rich serpentinite fragment)

Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄

Serpentinite

Serpentinite (complex silicate mineral group (Mg,Fe)3Si2O5(OH)4)

Carved serpentine wing sculpture

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