Mineral (Variety Of Chalcedony)

Milky Quartz

Silicon Dioxide (SiO2)

Yellow Jasper

SiO2 (Silicon Dioxide)

Jasper

Cryptocrystalline Quartz (SiO2)

Chert / Flint

Chert (Silicon Dioxide, SiO2)

Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)

Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Pyrite

Iron Sulfide (FeS2)

Carnelian (Carnelian Agate)

Carnelian (Silicon Dioxide - SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Iceland Spar (Optical Calcite)

Calcite (CaCO3)

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Pyrite (Fool's Gold) in Matrix

Iron Sulfide (FeS2)

White Quartz

Silicon Dioxide (SiO2)

Quartz (likely Clear Quartz or Rock Crystal)

Quartz (SiO2)

Green Moss Agate

Silicon Dioxide (SiO2) with inclusions of hornblende or chlorite

Black Tourmaline (Schorl)

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Blue Agate (Dyed Chalcedony)

Silicon Dioxide (SiO2)

Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)

Calcite

Granite

Phaneritic high-silica plutonic rock (composed primarily of Quartz, Feldspar, and Mica)

K2 Azurite Granite / K2 Stone

Granite (igneous rock) with Azurite inclusions (mineral)

Yellow Jasper (Limonite-stained Chert)

Silicon Dioxide (SiO2) with Limonite/Goethite inclusions

Amazonite in Pegmatite Matrix with Smoky Quartz

K(AlSi3O8) - Microcline (var. Amazonite) with SiO2 (Quartz)

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood

Silicified Wood (primarily SiO2)

Quartz (variety of colors)

SiO2 (Silicon Dioxide)

Cloud Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Quartz Geode

Silicon Dioxide (SiO₂)

Milky Quartz

Silicon Dioxide (SiO2)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz (Tumbled)

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Orange Calcite

Calcium Carbonate (CaCO3)

Hematite

Iron(III) oxide (Fe2O3)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Clear Quartz

Silicon dioxide (SiO2)