Mineral (Chalcedony Variety)

Granite Pebble (Salt and Pepper Granite)

Felsic Intrusive Igneous Rock (Granite)

igneous

Granite

Phaneritic Felsic Igneous Rock (Granite)

igneous

Banded Agate (Lake Superior Agate type)

Agate (Cryptocrystalline Variety of Quartz, SiO2)

Amber

Succinite (a common variety of fossilized resin)

Red Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Green Banded Agate

Agate (Cryptocrystalline variety of Quartz, SiO2)

Amazonite

Amazonite (KAlSi3O8 - a variety of Microcline Feldspar)

Amazonite

KAlSi3O8 (Potassium Feldspar, variety of Microcline)

Rose Quartz

Quartz (SiO₂), specifically a variety of Quartz

Citrine Geode (or Druzy Citrine)

Silicon Dioxide (SiO₂) - a variety of Quartz

Rose Quartz Carving

Quartum roseum (Variety of Quartz, SiO2)

Serpentinite

Serpentinite (complex silicate minerals including Lizardite, Antigorite, and Chrysotile)

Sandstone (lithic/greywacke variety)

Arenite (composed primarily of SiO2 with various lithic fragments)

Chert (Nodule)

Silicon Dioxide (SiO2)

Chert (Jasper/Flint variety)

Microcrystalline quartz (SiO2)

Chert / Jasper

Microcrystalline Quartz (SiO2)

Jadeite

Jadeite (NaAlSi2O6)

Snakeskin Agate

Agate (Cryptocrystalline Quartz, SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Labradorite

(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)

Blue Apatite

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

Rhodochrosite

Manganese carbonate (MnCO3)

Banded Gneiss (Variety of Gneiss)

Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)

Metamorphic Rock

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Clear Quartz (Rock Crystal Fragments)

Silicon Dioxide (SiO2)

Larimar

Pectolite (Blue variety), NaCa2Si3O10(OH)

Banded Agate (specifically Chalcedony nodule)

Agate (Silicon Dioxide, SiO2)

Yellow Quartz (Chalcedony/Citrine Pebble)

Silicon Dioxide (SiO2)

Petrified Wood

Silicified wood (Quartz/Chalcedony replacement of organic matter)

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Chert (specifically Tan Chert)

Chert (SiO2)

Greenstone (Greenstone River Pebble)

Greenschist (metamorphosed mafic igneous rock)

Chert (Jasper variation)

Chert (Silicate mineral, SiO2)

Titanium Coated Kyanite (Aura Kyanite)

Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Labradorite

(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)