Mineral (Native Element Alloy)

Turquoise

Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)

Gold Ore (in Quartz/Pyrite)

Native Gold (Au) with Quartz (SiO2) and Pyrite (FeS2)

Lepidolite

K(Li,Al)3(Si,Al)4O10(F,OH)2

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chert (often called Flint)

Chert (Microcrystalline Quartz, SiO2)

Apache Tear (Obsidian)

Volcanic glass (SiO2 - Silicon Dioxide)

Tiny metallic mineral fragment, possibly native gold

Native gold (Au), unconfirmed; could also be pyrite or chalcopyrite

Soapstone / Steatite

Steatite (primarily Talc, Mg3Si4O10(OH)2)

Gold Ore in Matrix

Native Gold (Au) in Quartz/Limonite host rock

Gold and Cubic Zirconia (San Judas Tadeo Pendant)

Native Gold (Au) with Synthetic Cubic Zirconia (ZrO2)

Red Coral

Corallium rubrum

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) impurities

Chert (varieties: Flint or Jasper)

Microcrystalline Quartz (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Native Gold (in earring form)

Gold (Au)

Red Jasper

Microcrystalline Quartz (Chalcedony), SiO2

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Mahogany Obsidian

Volcanic Glass with Hematite/Magnetite inclusions

Amygdaloidal Basalt

Amygdaloidal Basalt (containing secondary minerals like Quartz, Zeolites, or Calcite)

Man-made Jewelry (Metal and Glass/Plastic)

Synthetic Alloy and Amorphous Solid (SiO2/Polymer)

Iron Meteorite

Iron Meteorite (primarily Kamacite and Taenite, Fe-Ni alloys)

Iron meteorite fragment

Fe-Ni meteorite, likely an iron meteorite or stony-iron fragment

Ruby

Corundum (Al2O3:Cr)

Iron Meteorite (Fragment)

Siderite (Iron-Nickel alloy: Kamacite and Taenite)

Iron Meteorite

Iron-nickel alloy (primarily kamacite and taenite)

Iron Meteorite

Siderite (Iron-Nickel Alloy), predominantly Kamacite and Taenite (Fe, Ni)

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Sandstone Anvil / Nutting Stone

Quartzose Sandstone (Sedimentary Rock)

Red Jasper

Silicon Dioxide (SiO2)

Green Jasper

Silicon Dioxide (SiO2)

Red Jasper (Chert)

Silicon dioxide (SiO2) with iron oxide inclusions

Chert (Novaculite Variety)

Microcrystalline Quartz (SiO2)

Red Jasper (Polished)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Chert (Jasper/Agate variety)

Cryptocrystalline Quartz (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2)

Conglomerate with Native Copper

Clastic Sedimentary Rock with Native Copper (Cu)

Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)

Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy

Diamond ring

Diamond (crystalline carbon, C)

Iron meteorite fragment (probable)

Fe–Ni metallic meteorite, commonly octahedrite (kamacite–taenite)

Diamond

Carbon (C)