Mineral, Jewelry

Small turquoise-colored mineral fragment (possibly turquoise; identification uncertain)

Possibly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the image does not show enough detail to confirm

Fossilized Shark Tooth

Chondrichthyes (Class)

Turquoise-bead jewelry

Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; the beads may be natural turquoise or a stabilized/imitation material

Gemstone cocktail ring, likely jade and quartz or glass beads

Possible jadeite (NaAlSi₂O₆) or nephrite (Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂); the peach-colored beads cannot be reliably identified from the image

Garnet

Silicate mineral group (e.g., Almandine, Fe3Al2(SiO4)3)

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Green faceted gemstone earrings, likely synthetic emerald-colored glass or cubic zirconia

Undetermined; possible glass (amorphous silicate) or synthetic cubic zirconia (ZrO₂)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Diamond-set letter “L” jewelry piece

Diamond (crystalline carbon, C) set in a metal mount; the metal is not identifiable from the image

Turquoise or Chrysocolla (Inlaid Jewelry)

Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate

Epidote

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

Epidote

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

Epidote

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

Amazonite and Smoky Quartz

Microcline (KAlSi3O8) and Quartz (SiO2)

Quartz

Silicon Dioxide (SiO2)

Epidote

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

Likely turquoise-colored mineral or dyed stone

Unidentified opaque blue-green material; turquoise, chrysocolla, dyed howlite, or glass cannot be distinguished from the image alone

Chrysocolla in Matrix

Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O

Beaded mineral/crystal jewelry (likely turquoise and coral accents)

Variable; blue beads may be turquoise (CuAl6(PO4)4(OH)8·4H2O), with possible dyed howlite, glass, or composite materials

Jet

Lignite (Anthracite-grade compact coal)

Green glass-like cabochon, likely synthetic glass or resin

Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin

Red Cubic Zirconia (Simulated Garnet)

Zirconium Dioxide (ZrO2)

Unidentified small mineral specimen

Undetermined from the image

Gemstone Beads

Various mineral species

Small blue mineral specimen, possibly sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂ (tentative identification)

Amethyst

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz-rich pegmatite with black tourmaline

Granitic pegmatite composed chiefly of quartz, with black tourmaline (schorl); possibly feldspar

Shark Tooth Fossil

Chondrichthyes (class) fossilized tooth

Green Fluorite

Calcium Fluoride (CaF2)

Schist

Schist

Faceted clear gemstone in a metal setting

Unidentified transparent faceted gem; possibilities include quartz (SiO₂), topaz (Al₂SiO₄(F,OH)₂), or glass—the image is insufficient for identification.

Malachite Bracelet

Copper Carbonate Hydroxide, Cu2CO3(OH)2

Ruby and Diamond Heart Pendant

Corundum (Al2O3) and Diamond (C)

Green Aventurine

Quartz (SiO2) with fuchsite inclusions

Aquamarine with Muscovite

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Muscovite Mica

Hematite

Hematite (Fe2O3)

Pyrite

Iron Sulfide (FeS2)

Epidote

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

Quartz

Silicon Dioxide (SiO2)

Epidote

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

Amethyst

Quartz (Silicon Dioxide, SiO2)