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

Chert / Flint

Chert (Microcrystalline Quartz, SiO2)

Conglomerate

Conglomerate rock

Chert (specifically Flint or Common Opal variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Tiger's Eye

Silicon Dioxide (SiO2) with Limonite/Goethite pseudomorphs after Crocidolite

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Rutilated Quartz

Quartz (SiO2) with Rutile inclusions (TiO2)

Chert (specifically Gray/Tan Bedded Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Blue-Gray Chert)

Microcrystalline quartz (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Chert (specifically Black Chert / Flint)

Silicon Dioxide (SiO2)

Pink Granite (with Potassic Feldspar and Quartz)

Felsic Intrusive Igneous Rock (Granite)

Peridot (likely, based on color and appearance)

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

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Strawberry Quartz

Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite

Eagle Eye Stone (Green Tiger's Eye)

Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)

Black Spinel

Magnesium Aluminum Oxide (MgAl2O4)

White Topaz

Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2

Granite

Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Chert (often called Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert Pebble Map

Microcrystalline Quartz (SiO2)

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Chert (Jasper variety)

Microcrystalline quartz (SiO2)

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Jasper variety)

Microcrystalline Quartz (SiO2)

Chert (Basanite variety)

Microcrystalline Quartz (SiO2)

Chert (Brown Variety)

Microcrystalline quartz (SiO2)

Chert (Novaculite Variety)

Microcrystalline Quartz (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Red Mudstone (Siltstone)

Lutite (primarily Quartz and Clay minerals with Hematite)

Peridot and Citrine Gemstones (in a ring setting)

Peridot (Olivine: (Mg,Fe)2SiO4), Citrine (Quartz: SiO2)

Granitic Pegmatite

Coarse-grained Granite (KAlSi3O8 + SiO2)

Mookaite Jasper

Silicified Porcellanite (SiO2 with impurities)

Quartz

Silicon dioxide (SiO₂)

Orange Calcite

Calcium Carbonate (CaCO3)

Chert (often referred to as Flint or Jasper when pigmented)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert

Chert (Microcrystalline Quartz, SiO2)

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Rutilated Quartz

SiO2 with TiO2 inclusions (Quartz with Rutile)

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz (Variety of Rough Mineral Specimens)

Silicon Dioxide (SiO2)