Mineral (Specifically A Variety Of Chalcedony, Which Is A Microcrystalline Quartz)

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

Pink Tourmaline in Quartz Matrix

Elbaite (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4) with Quartz (SiO2)

Chert (River Pebble)

Chert (Silicon Dioxide, SiO2)

Banded Agate (specifically sardonyx or carnelian agate variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Eye Agate (Sulemani Agate)

Banded Chalcedony (SiO2)

Jasper

Silicon Dioxide (SiO2)

Oyster Shell (Aragonite/Calcite)

Calcium Carbonate (CaCO3)

Orbicular Granite (specifically Mustard or Yellow Tonalite/Granodiorite)

Orbicular Quartz Diorite / Tonalite

Smoky Quartz

Silicon Dioxide (SiO2)

Red Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper

Silicon dioxide (SiO2)

Yellow Jasper (Chert variant)

Silicon Dioxide (SiO2)

Jasper (likely Brown or Brecciated)

Jasper (Silicon Dioxide, SiO2)

Charoite

Charoite (K(Ca,Na)2Si4O10(OH,F)·nH2O)

Jasper

Silicon dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Blue Tiger's Eye

Silicon Dioxide (SiO2) with Crocidolite inclusions

Tiger's Eye (specifically Blue Tiger's Eye / Falcon's Eye)

Pseudomorph of Quartz after Crocidolite (SiO2)

Chert (often called Flint when dark)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8

African Turquoise

African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)

Chert (with Chalky Cortex)

Silicon Dioxide (SiO2)

Citrine

Quartz (SiO2) - variety Citrine

Chert Pebble with Inclusion

Microcrystalline Quartz (SiO2)

Black Marble

Recrystallized Calcite (CaCO3)

Rose Quartz

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

Jasper or Chert with Quartz Vugs

Silicon Dioxide (SiO2)

Ocean Jasper

Spherulitic Chalcedony (SiO2)

Tree Agate

Silicon Dioxide with Chlorite inclusions (SiO2)

Labradorite

(Ca, Na)(Al, Si)4O8 (Calcium Sodium Aluminum Silicate)

Quartz

Silicon Dioxide (SiO₂)

Zebra Jasper

Silicon dioxide (SiO2) with various impurities

Fuchsite

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)

Jasper River Stone

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper with Hematite inclusions

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)

Honey Calcite

Calcium Carbonate (CaCO3)

Jasper (likely Lake Superior Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Moonstone (specifically Rainbow Moonstone / White Labradorite)

White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)

Beryl (Emerald Variety)

Beryllium Aluminum Silicate (Be3Al2(SiO3)6)

Pietersite

Brecciated Crocidolite in Quartz (Chalcedony)

Chert (or Chalcedony)

Chert (Microcrystalline Quartz, SiO2)

Moonstone (Feldspar variety)

Orthoclase Feldspar (KAlSi3O8)