Igneous And Sedimentary

Dalmatian Jasper

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Natural freshwater pearls

Pearl (nacreous calcium carbonate; chiefly aragonite, CaCO₃)

Magnetite Ore

Magnetite (Fe3O4)

Magnetite

Magnetite (Fe3O4)

Pyrite

Iron Sulfide (FeS2)

Quartz

Silicon Dioxide (SiO2)

Quartz (Pebble)

Silicon Dioxide (SiO2)

Quartz Crystal Rock

Silicon Dioxide (SiO2)

Yellow Calcite

Calcium Carbonate, CaCO3

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Faceted)

SiO2 - Silicon Dioxide

Faceted Clear Quartz or Diamond Simulant

Silicon Dioxide (SiO2) if Quartz or Cubic Zirconia (ZrO2) if Synthetic

Leopard Skin Jasper

Orbicular Jasper (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Druzy Quartz

Silicon Dioxide (SiO2)

Magnetite / Ironstone

Iron(II,III) oxide (Fe3O4)

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Quartz Crystal

Silicon Dioxide (SiO2)

Galena

Lead Sulfide (PbS)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Agate/Jasper pebble)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Geode (Unopened)

Quartz/Chalcedony concretion

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)

Unidentified Dark Mineral or Rock

Indeterminate (Likely Silicon Dioxide or Carbon-based)

Quartz

Silicon Dioxide (SiO2)

Pyrite

Iron Pyrite (FeS2)

Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz (Raw Chunk)

Silicon Dioxide (SiO2)

Pyrite (Fools Gold)

Iron Disulfide (FeS2)

Quartz (Milky/Snow)

Silicon Dioxide (SiO2)

Blue Apatite

Fluoroapatite (Ca5(PO4)3F)

Hematite

Iron(III) oxide (Fe2O3)

Biotite (Black Mica)

Biotite - K(Mg,Fe)3(AlSi3O10)(F,OH)2

Pyrite

Iron Sulfide (FeS2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Magnetite

Magnetite (Fe3O4)