Mineral (Processed Metal)

Asphalt aggregate (crushed stone in bitumen)

Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen

Quartzite pebble

Meta-quartzite (SiO2)

Aquamarine (Small Beads)

Beryl (Be3Al2Si6O18 with traces of iron)

Faceted Peach Morganite (Beryl)

Morganite (Be3Al2Si6O18 with trace Manganese)

Aquamarine in Onyx / Blue Topaz Pendant

Beryl (Be₃Al₂Si₆O₁₈) or Topaz (Al₂SiO₄(F,OH)₂)

Assorted gemstone jewelry

Mixed natural and synthetic gemstone cabochons and faceted stones; individual species cannot be determined reliably from this image

Dyed Pink Agate (Crackled)

Silicon Dioxide (SiO2) - Chalcedony variety

Concretion

Sedimentary Concretion (e.g., Siderite or Ironstone)

Crushed Granite and Quartz Gravel

Composite Igneous and Silicate Rock Aggregate

Diamond (or Cubic Zirconia)

Carbon (C) or Zirconium Dioxide (ZrO2)

Pyrite in Quartz (Drill Core)

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Unidentified gray mineral/rock fragment

Indeterminate from image; possibly quartz-rich material or mica-bearing schist

Tumbled lavender quartz (likely lepidolite-bearing quartz or dyed quartz)

Quartz, SiO₂; possible lepidolite mica inclusions

Quartz (Tumbled/Water-worn)

Silicon Dioxide (SiO2)

Red cabochon gemstone ring (likely glass or synthetic stone)

Undetermined; the image does not establish a natural mineral identity

Silver Nuggets (Natural or Cast)

Native Silver (Ag)

Weathered iron-rich basalt or laterite

Basalt, likely limonitized/goethite-stained; exact identification requires testing

Gold Nugget

Native Gold (Au)

Dyed and Metallic Coated Agate Geode

Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating

Gemstone ring (stones not reliably identifiable from the image)

Likely faceted yellow stones and clear stones set in a metal band; species and treatments are indeterminate visually

Honey Calcite (Yellow Calcite)

Calcium Carbonate (CaCO3)

Pyrite-bearing metamorphic rock (probable pyrite schist or sulfide ore)

Pyrite (FeS₂) in a foliated, quartz–mica-rich host rock; exact identification requires testing

Quartz Vein in Host Rock (Pebble)

Quartz (SiO2) with sandstone or siltstone matrix

Schist (Diamond Drill Core)

Mica Schist

Goldstone and Aura Quartz

Cuprous Glass (Goldstone) and Titanium-coated SiO2 (Aura Quartz)

Goldstone (Red)

Aventurine Glass

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Cupronickel Coin

Copper-Nickel Alloy (typically 75% Cu, 25% Ni)

Serpentinite

Serpentinite (composed primarily of minerals in the Serpentine group)

Titanium Coated Kyanite (Aura Kyanite)

Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating

Polished dendritic agate cabochon

Microcrystalline quartz (chalcedony), SiO₂, with iron/manganese dendrites and possible plume inclusions

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Cut diamond tennis-chain jewelry

Diamond, crystalline carbon (C), cubic crystal system

Copper Ore (Malachite/Chrysocolla bearing)

Cupriferous rock containing secondary copper minerals like Cu2CO3(OH)2

Mixed gemstone bead strand, likely including agate, quartz, turquoise, and sandstone beads

Varied silicate and copper-mineral materials; exact bead identities cannot be confirmed visually

Dyed Quartz Crystals

Silicon Dioxide (SiO2) with artificial pigment

Green aventurine bead bracelet

Quartz (SiO₂), commonly green quartzite/aventurine colored by fuchsite mica or other inclusions

Goldstone

Avventurina (Cu + SiO2 glass)

Small metallic mineral fragment

Indeterminate; possibly galena, hematite, magnetite, or metallic meteorite fragment

Native Gold Nugget

Native Gold (Au)