Igneous, Sedimentary, Metamorphic, And Mineral

Quartz (Water-worn Pebble)

Silicon Dioxide (SiO2)

Peacock Ore (Chalcopyrite/Bornite)

Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Black Sapphire (Basaltic Blue Sapphire)

Corundum (Al2O3)

Greenstone

Greenschist (containing chlorite, epidote, and actinolite)

Pyrite in Matrix

Iron Sulfide (FeS2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Milky Quartz with inclusions

Silicon Dioxide (SiO2)

Dalmation Stone

Peralkaline Rock (SiO2 with Arfvedsonite)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Diorite Gneiss

Foliated Diorite Gneiss

Sandstone (with potentially metamorphic or basaltic bands)

Arenite / Lithic Wacke

Marble

Recrystallized Calcite / Dolomite (CaCO3)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Orange Calcite

Calcium Carbonate (CaCO3)

Pyrite in Quartz

Iron Disulfide (FeS2) in Silicon Dioxide (SiO2)

Tiger's Eye

Silicon dioxide (SiO2) - Pseudomorph after crocidolite

Black Onyx

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Hematite Nodule

Hematite (Fe2O3)

Blue Kyanite

Kyanite (Al2SiO5)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Garnet (Almandine/Pyrope)

Silicate Mineral (Group: X3Y2(SiO4)3 where X=Mg, Fe, Mn and Y=Al, Fe, Cr)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Smoky Quartz

Silicon Dioxide (SiO2)

Ruby

Corundum (Al2O3) with Chromium traces

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Greenstone

Metabasalt / Greenschist facies rock

Mica Schist

Mica Schist (Composition: Muscovite, Biotite, Quartz, Feldspar)

Greenschist

Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)

Lapis Lazuli

Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2, Calcite, and Pyrite)

Milky Quartz Pebble with Iron staining

Silicon Dioxide (SiO2)

Pink Feldspar

Orthoclase (KAlSi3O8) or Microcline

Smoky Quartz

Silicon Dioxide (SiO2)

Almandine Garnet in Matrix

Almandine, Fe3Al2(SiO4)3

Quartz Pebble (with probable Iron staining)

Silicon Dioxide (SiO2)

Yellow Quartz

Silicon Dioxide (SiO2)

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

Pink Sapphire

Corundum (Al2O3) with Chromium/Iron/Titanium trace impurities

Dalmatian Stone

Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)

Sapphire (Raw/Rough)

Corundum (Al2O3)