Mineral, Specifically A Variety Of Quartz

Ametrine

Ametrine (SiO2 - Silicon Dioxide with trace amounts of Iron)

Quartz (Variety: Rose Quartz/Smoky Quartz mix)

Silicon Dioxide (SiO2)

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Opaque cryptocrystalline variety of Quartz

Smoky Quartz

Smoky Quartz (SiO2: Silicon Dioxide)

Carnelian (a variety of Chalcedony)

Cryptocrystalline Quartz (SiO2) with iron oxide inclusions

Milky Quartz

Quartz (SiO₂)

Blue Chalcedony (Tumbled)

Silicon Dioxide (SiO2)

Chert (Agatized Chert)

Microcrystalline Quartz (SiO2)

Chert (often called Jasper in this color)

Microcrystalline quartz (SiO2)

Chert (potentially Flint or Mudstone)

Microcrystalline Quartz (SiO2)

Quartz (Small fragments)

Silicon Dioxide (SiO2)

Jasper (likely a variety of Yellow or Mustard Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Geode (Quartz)

Silicon Dioxide (SiO2)

Quartz Geode

Silicon Dioxide (SiO2)

Chalcedony (Common Opal variant or Agate)

Silicon Dioxide (SiO2)

Moss Agate

Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides

Rose Quartz

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

Dyed Imperial Jasper (Sea Sediment Jasper)

Silicon Dioxide (SiO2) - Impure Quartz/Chalcedony

Smoky Quartz

Silicon Dioxide (SiO2)

Honey Calcite

Calcium Carbonate (CaCO3)

Iron-Stained Quartzite

Recrystallized Meta-Quartzite (primarily SiO2)

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO2)

Quartzite Pebble

Quartzite (SiO2)

Chert (Flint variety)

Chert (Cryptocrystalline variety of Quartz, SiO2)

Moss Agate and Druzy Quartz Carving

Cryptocrystalline Silica (SiO2) with impurities

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Beryl (likely Aquamarine or Green Beryl)

Beryllium aluminum silicate (Be3Al2Si6O18)

Emerald

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Limonite/Hematite Ironstone

Goethite-rich Ironstone (FeO(OH) · nH2O)

Rose Quartz

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

Rose Quartz

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

Basalt with Vesicle/Vug

Basalt (Aphanitic Mafic Igneous Rock)

Rough Green Adventurine

Aventurine (Variety of Quartz, SiO2)

Pumice (specifically a water-worn, weathered variety)

Vesicular volcanic glass

Fire Opal (Common/Precious in Matrix)

Hydrated Silica (SiO2·nH2O)

Fuchsite

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

Chert (specifically Yellow Jasper/Flint)

Microcrystalline Quartz (SiO2)

Chert (specifically Red Chert/Jasper)

Microcrystalline Quartz (SiO2)

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Tiger's Eye (specifically Blue/Golden mixed or Hawk's Eye)

Pseudomorph of Quartz after Crocidolite (SiO2)

Red Jasper (Chert)

Silicon Dioxide (SiO2) with impure Iron Oxides

Pyrite

Iron Disulfide (FeS2)