Mineral Based Alloy (Anthropogenic)

Unknown Organic Object (likely a berry or fruit)

Not applicable; this is not a geological specimen. If it were a cranberry, its scientific name would be Vaccinium macrocarpon; if a cherry, it would be Prunus avium or Prunus cerasus.

Mookaite Jasper

Silicified Radiolarite (SiO2)

Sandstone (Quartz-rich)

Sandstone (SiO2 dominated)

Possible metallic meteorite or iron-nickel bead

Unconfirmed; possible Fe–Ni alloy (kamacite/taenite)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Sandstone Geode (Unbroken)

Siliciclastic sedimentary rock (primarily Quartz)

Plume Agate or Moss Agate

Agate (SiO2)

Milky quartz

Quartz (silicon dioxide, SiO₂)

Sandstone (with Laminations)

Clastic sedimentary rock (primarily Quartz-based)

Sandstone

Sandstone (composed predominantly of Quartz, SiO2, with Feldspar and Clay minerals)

Diamond

Natural Carbon (C)

Native Gold (in the form of jewelry)

Gold (Au)

Gold Nugget

Native Gold (Au)

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Jasper (likely a variety of Yellow or Mustard Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Sandstone

Quartz arenite / Lithic sandstone

Sandstone (Quartzose)

Arenite (primarily SiO2)

Gold (Elemental Metal)

Gold (Au)

Zinc Alloy (Silver-plated)

Zinc Alloy Casting (Zn-Al-Mg-Cu)

Iron-Nickel Meteorite Fragment (Unclassified)

Iron-Nickel Alloy (Taenite and Kamacite)

Iron-Nickel Meteorite

Siderite (Meteoric Iron-Nickel alloy)

Iron Meteorite

Siderite (Meteoric Iron-Nickel alloy)

Galena

Galena (lead sulfide, PbS), likely with associated sulfide minerals

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Bismuth

Bismuth (Bi)

Rough Topaz

Aluminum silicate fluoride hydroxide [Al2SiO4(F, OH)2]

Gold Ore (in Quartz/Gossan matrix)

Native Gold (Au) in Limonite/Quartz matrix

Painted River Rock (likely Quartzite or Granite)

Quartzite or Granitic Gneiss (painted)

Chert Arrowhead

Cryptocrystalline microcrystalline Quartz (SiO2)

Quartzite Arrowhead (Archaeological Lithic)

Recrystallized Quartz (SiO2)

Conglomerate

Conglomerate (clastic sedimentary rock)

Sandstone

Arenite (SiO2 principal)

Opalite

Synthetic Glass (Silica-based)

River Pebble (likely Quartzite or Siltstone)

Sedimentary Clast (SiO2 based)

Likely galena

Galena (lead sulfide, PbS)

Galena

Galena (lead sulfide, PbS)

Zebra Jasper

Silicon Dioxide (SiO2) with various inclusions

Tumbled brown stone, possibly amber or polished agate

Indeterminate from image; possibilities include amber (fossilized plant resin, organic) or chalcedony/quartz (SiO₂)

Emerald in Host Rock

Beryl (Be3Al2Si6O18) containing Chromium and/or Vanadium

Fossilized Shell in Limestone

Carbonate sedimentary rock with Bivalvia or Brachiopoda remains

Iron Meteorite

Iron-nickel alloy (primarily kamacite and taenite)