Mineral (Processed Metal)

Pyrite

Iron Disulfide (FeS2)

Blue Goldstone

Man-made glass with suspended copper, cobalt, or manganese particles

Granite

Phaneritic Felsic Igneous Rock

Native Silver

Silver (Ag)

Copper Ore with Chalcocite

Copper sulfide (Cu2S) with associated copper-bearing minerals

Chalcopyrite (or Pyrite Ore)

CuFeS2 (Copper Iron Sulfide)

Granite countertop with a small pale mineral fragment

Granite; predominantly quartz, feldspar, and mica

Slag (Industrial Byproduct)

Ferro-silicate glass (Slag)

Cobalt Blue Slag Glass

Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives

Porphyritic Basalt or Porphyritic Andesite

Porphyritic volcanic rock

Tumbled black-and-white stone, likely dendritic agate or jasper

Cryptocrystalline quartz (SiO₂), possibly chalcedony with manganese-oxide dendrites

Dyed mineral cluster, likely calcite or aragonite

Calcite (CaCO₃) or aragonite (CaCO₃), artificially color-enhanced

Likely tumbled jasper or iron-rich chert

Microcrystalline quartz (SiO₂), potentially hematite/goethite-bearing

Native Copper with Cuprite and Quartz

Copper (Cu), Cuprite (Cu2O), Quartz (SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Banded Agate Coaster

Silicon Dioxide (SiO2) - Variety Agate / Chalcedony

Sandstone (Ferruginous Concretion)

Ferruginous Sandstone Concretion / SiO2 with Fe2O3 cement

Quartz Vein in Granite

Crystalline Silicon Dioxide (SiO2) in Granitic Matrix

Slag (Industrial By-product)

Glassy silicate or metallic smelting residue

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Serpentinite

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

Dyed Blue Agate

Chalcedony (Silicon Dioxide / SiO2)

Granite

Intrusive Igneous Rock

Lepidolite

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

Aqua Aura Quartz

Titanium/Gold-coated Silicon Dioxide (SiO2)

Quartz Vein in Host Rock (Gneiss/Schist)

Silicon Dioxide (SiO2) within a metamorphic matrix

Orgonite Pyramid (containing Amethyst and mixed minerals)

Silicon Dioxide (SiO2) in synthetic resin

Black tourmaline beads (likely schorl)

Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Tumbled and polished quartz crystal points

Quartz (silicon dioxide, SiO₂), chiefly rock crystal with smoky or included varieties

Opalite

Synthetic Opalized Glass / Man-made Glass

Granite

Felsic intrusive igneous rock

Gossan (with Limonite and Hematite)

Gossanous iron-oxide rock (Fe2O3 · nH2O)

Quartz-bearing Pegmatite with Metallic Sulfides

Pegmatite / Quartz-Feldspar Matrix with Pyrite and Mica

Serpentinite

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

Titanium Aura Quartz (Bismuth-coated Druzy)

Silicon Dioxide (SiO2) with Titanium/Metal vapor coating

Lepidolite

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

Rhyolite

Extrusive igneous rock (felsic)

Clear quartz (likely quartz crystal fragment)

Quartz, silicon dioxide (SiO₂)

Gold Nugget

Native Gold (Au)

Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Gold Ore

Native Gold (Au) in Matrix

Cubic Zirconia (Simulated Diamond)

Zirconium Dioxide (ZrO2)