Metamorphic Rock (Variety Of Quartz)

Orthoclase Feldspar (Salmon variety)

Orthoclase, KAlSi3O8

Quartz Pebble (Water-worn Quartzite)

Silicon Dioxide (SiO2)

Chert (Flint variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Green Aventurine

Aventurine (a variety of Quartz, SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Tiger's Eye

SiO2 (Quartz with inclusion of iron oxides)

Dalmatian Stone (Dalmatian Jasper)

Dalmatian Stone (A variety of Perthite / Aplite)

Milk Quartz (White) and Yellow Aventurine (Yellow)

Silicon Dioxide (SiO2)

Yellow Calcite

Calcite (Calcium Carbonate, CaCO3)

Epidote with Feldspar/Quartz (Unakite-like)

Epidotized Granite (Ca2(Al,Fe)3(SiO4)3(OH) + KAlSi3O8)

Quartzite Pebble

Metamorphic Quartzite (primarily SiO2)

Tiger's Eye

Tiger's Eye (a variety of Chalcedony, which is cryptocrystalline quartz). Chemical Formula: SiO2 with inclusions of crocidolite fibers.

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Chert (Jasper variety)

Microcrystalline quartz (SiO2)

Smoky Quartz

SiO2 (Silicon Dioxide)

Yellow Quartz (Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Pink Granite

Phaneritic Plutonic Felsic Rock (Granite)

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

Milky Quartz

Quartz (SiO2)

Agate (Carnelian-Blue Agate mix)

Silicon Dioxide (SiO2)

Quartzite Pebble

Quartzite (principally SiO2)

Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)

Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide)

Quartz (Milky/Bull Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky or Rough Variety)

Silicon Dioxide (SiO2)

Riverstone (Quartzite or Siltstone cobble)

Quartzite (primarily SiO2)

Unakite

Epidotized Granite

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Riverstone Quartzite

Quartzite (primarily SiO2)

Chert (Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) with impurities

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Red Quartzite River Stone

Metamorphic Rock (composed mainly of Quartz, SiO2)

Demantoid Garnet on Matrix

Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3

Quartzite (Water-worn Cobble)

Quartzite (Composition: 90%+ SiO2)

Quartz (Milky/Crystalline variety)

Silicon Dioxide (SiO2)

Picture Jasper

Silicon dioxide (SiO2)

Blue Lace Agate

Silicon Dioxide (SiO₂), a variety of Chalcedony

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

Pseudomorph of Quartz after Crocidolite (SiO2)

Quartz / Milky Quartz

Quartz (Silicon Dioxide - SiO2)