Mineral, Jewelry

Native gold (small nugget or grain)

Native gold, Au

Smoky Quartz with Rutile Inclusions

Silicon Dioxide (SiO2) with TiO2 needles

Quartz with Tourmaline inclusions

Silicon Dioxide (SiO2) with Tourmaline needles

Tumbled Mixed Gemstones and Rocks

Various mineral species including quartz (SiO2) and silicate minerals

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Fossilized Shark Tooth

Chondrichthyes (Class)

Likely garnet crystal (rough fragment)

Garnet group; possibly almandine, Fe₃Al₂(SiO₄)₃

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)

Green Fluorite

Calcium Fluoride (CaF2)

Jet

Lignite (Anthracite-grade compact coal)

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Mixed gemstone jewelry collection

Various gemstone minerals, including likely amethyst (quartz), sapphire or iolite, garnet, pearl, turquoise, and colored beryl or tourmaline

Schist

Schist

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Amethyst

Quartz (Silicon Dioxide, SiO2)

Green glass-like cabochon, likely synthetic glass or resin

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

Epidote

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

Unidentified small mineral specimen

Undetermined from the image

Shark Tooth Fossil

Chondrichthyes (class) fossilized tooth

Turquoise or Chrysocolla (Inlaid Jewelry)

Hydrated copper aluminum phosphate / Hydrated copper phyllosilicate

Weathered rock pebble, possibly quartz-rich sandstone

Uncertain from the image; likely quartz-bearing sandstone with iron-oxide staining

Geode half

Geode (often quartz/chalcedony based)

Ruby and Diamond Heart Pendant

Corundum (Al2O3) and Diamond (C)

Small rounded pebble (rock type indeterminate)

Unidentified lithic pebble; specific composition cannot be determined from the image

Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)

Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))

Small colored gemstone or glass cabochons (uncertain)

Not identifiable from the image; the pieces may be colored glass or synthetic stones rather than natural minerals.

Moonstone

Orthoclase (KAlSi3O8)

Red Cubic Zirconia (Simulated Garnet)

Zirconium Dioxide (ZrO2)

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

Turquoise (possibly reconstituted or dyed howlite)

CuAl6(PO4)4(OH)8·4H2O (Hydrated Copper Aluminum Phosphate)

Faceted gemstones, likely assorted quartz or glass-like gems

Not determinable from the photograph; possible quartz (SiO₂), topaz, or synthetic cubic zirconia

Ruby (Raw Corundum)

Al2O3 (Aluminum Oxide)

Mixed gemstone jewelry collection

Likely amethyst, rose quartz or pink tourmaline, smoky quartz, and dark tourmaline/onyx; exact identifications are uncertain from the image

Rhodochrosite with Quartz

Manganese Carbonate (MnCO3) with Silicon Dioxide (SiO2)

Mixed rock and mineral collection

Unidentified assortment of geological specimens; individual species cannot be determined from the image

Shark Tooth Fossil

Vertebrate fossilized tooth

Jasper

Microcrystalline Quartz (SiO2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Hematite bead bracelet

Hematite (Fe₂O₃), likely polished or magnetically enhanced beads

Blue Howlite (Dyed)

Dyed Howlite (Calcium Borosilicate Hydroxide, Ca2B5SiO9(OH)5)

Amazonite

Microcline (KAlSi3O8)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)