Quartz Vein in Schist / Gneiss
Silicon Dioxide (SiO2) in Metamorphic Matrix
igneous
Category
Mineral (Refined Metal)
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Pyrite
Iron Disulfide (FeS2)
mineral
Aura Quartz Geode (Angel Aura Quartz)
Silicon Dioxide (SiO2) bonded with precious metals
mineral
Aura Quartz (Pink/Magenta Aura Quartz)
Silicon Dioxide (SiO2) treated with vapor-deposited precious metals
mineral
Gossan (Iron Hat)
Iron oxide-rich weathered rock (primarily Limonite and Goethite with secondary Quartz)
mineral
Aura Quartz
Titanium or Gold bonded Silicon Dioxide (SiO2)
mineral
Weathered copper-bearing rock (likely malachite-stained basalt or greenstone)
Malachite, Cu₂CO₃(OH)₂, as a secondary coating on a mafic host rock; exact identification requires testing
igneous
Limonite (Iron Stone/Gossen)
Limonite (FeO(OH)·nH2O)
mineral
Gold Flakes
Native Gold (Au)
mineral
Gold Flake
Native Gold (Au)
mineral
Copper Nugget
Native Copper (Cu)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Cubic Zirconia (as used in jewelry setting)
Zirconium dioxide (ZrO2)
mineral
Garnet-set butterfly brooch
Likely almandine or pyrope garnet, iron–aluminum silicate (Fe₃Al₂Si₃O₁₂ or Mg₃Al₂Si₃O₁₂)
gemstone
Quartz Vein in Matrix
Silicon Dioxide (SiO2) within Rhyolitic or Granitic Matrix
igneous
Serpentinite
Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4
metamorphic
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2
metamorphic
Greenstone or Chlorite Schist
Greenschist / Chlorite schist
metamorphic
Quartzite pebble
Quartzite (SiO2) with iron oxide staining
metamorphic
Metallic iron meteorite (probable)
Iron meteorite, typically kamacite–taenite (Fe–Ni alloy)
meteorite
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amber Inlay Jewelry
Fossilized Resin (C10H16O)
Organic Gemstone (Biogenic)
Sandstone (Red)
Arenite (Fe2O3 heavy)
sedimentary
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2)
mineral
Diamond Druzy (Crystalline Diamond)
Carbon (C)
mineral
Cubic Zirconia (CZ) in Gold-Plated Setting
Cubic Zirconium Dioxide (ZrO2)
mineral
Gossan
Ferruginous gossan (Iron-rich capping)
sedimentary
Possible iron-rich meteorite fragment
Undetermined; possible stony-iron or iron-oxide-rich meteorite
meteorite
Gold-bearing quartz (probable sulfide-bearing quartz)
Quartz, SiO₂, with possible pyrite or mica inclusions
mineral
Gold Nugget
Gold (Au)
mineral
Aura Quartz (specifically Titanium Aura Quartz)
Titanium-coated Silicon Dioxide (SiO2 + Ti Coating)
mineral
Opalite
Synthetic Glass (Hydrated Silica Simulant)
mineral
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
mineral
Ironstone / Gossan with Quartz Inclusions
Limonite / Goethite rich Sandstone / Gossan
sedimentary
Native gold nuggets (likely gold-bearing specimen)
Native gold, Au; possibly associated quartz or sulfide matrix
mineral
Blue Celestite
Celestine (Strontium Sulfate, SrSO4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Beryl (Emerald Variety)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral