Mineral (Gemstone Variety Of Beryl)

Quartz (Gray/Smoky Varieties)

Silicon Dioxide (SiO2)

Eye Agate Ring

Silicon Dioxide (Chalcedony variety Agate), SiO2

Agate (specifically Carnelian Agate or Sardagate)

Silicon dioxide (SiO2) - variety of chalcedony

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Dalmatian Jasper

Dalmatian Stone (a porphyritic peralkaline igneous rock)

Tree Agate

Silicon Dioxide (SiO2) with Chlorite inclusions

Quartz

Silicon Dioxide (SiO2)

Yellow Jasper

Jasper (Silicon Dioxide, SiO2 with iron inclusions)

Tiger’s eye

Quartz variety, primarily silicon dioxide (SiO₂); fibrous quartz pseudomorph after crocidolite asbestos

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Rose Quartz

SiO2 (Silicon Dioxide with trace amounts of titanium, iron, or manganese)

Rainbow Moonstone (White Labradorite)

Labradorite (Feldspar family, (Na,Ca)(Al,Si)4O8)

Serpentine

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

Chert (variations include Flint/Chalcedony)

Chert (SiO2 - Silicon Dioxide)

Jasper

Silicon dioxide (SiO2)

Jade Bangle (Jadeite)

Jadeite, NaAlSi2O6

Quartz (Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Yellow Jasper

Silicon Dioxide (SiO2) with goethite or iron oxide inclusions

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Garnet (Almandine)

Almandine Garnet (Fe3Al2(SiO4)3)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Rose Quartz

Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Jasper

Silicon Dioxide (SiO2) with impurities

Jasper

Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)

Jasper

Silicon Dioxide (SiO2)

Peridot

Olivine (specific variety: gem-quality forsterite), (Mg,Fe)2SiO4

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Quartz

Quartz (SiO₂)

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)

Red Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Chert (Flint)

Microcrystalline Quartz (SiO2)

Peridot (likely, based on color and appearance)

Olivine group mineral, specifically (Mg,Fe)2SiO4 (Forsterite-Fayalite solid solution series)

Tumbled carnelian/chalcedony

Microcrystalline quartz (SiO₂), likely iron-colored chalcedony

Chert (Chalcedony/Agate variety)

Silicon Dioxide (SiO2)

Rose Quartz

Rose Quartz (SiO2 with traces of Ti, Fe, or Mn)

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Jasper

Jasper (Silicon Dioxide, SiO2 with iron inclusions)

Smoky Quartz

Silicon Dioxide (SiO2)