Mineral (Silicate Variety)

Chalcedony (Variety: Agate)

Silicon Dioxide (SiO2)

Sunstone (Feldspar variety)

(Ca,Na)(Al,Si)4O8 with Hematite or Goethite inclusions

Carnelian (a variety of Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Carnelian (a variety of Chalcedony)

Silicon Dioxide (SiO2) with iron oxide impurities

Aquamarine (Pale variety)

Beryl (Be3Al2Si6O18)

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide) with Iron Oxide impurities

Pyrite (Cube variety)

Iron Sulfide (FeS2)

Carnelian (a variety of Chalcedony)

Silicon Dioxide (SiO2) with Iron Oxide impurities

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide) - Cryptocrystalline Quartz

Amethyst (Quartz variety)

Silicon Dioxide (SiO2) with iron impurities

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide) primarily colored by iron oxide (Hematite)

Amethyst (Variety of Quartz)

Silicon Dioxide (SiO2)

Carnelian (a variety of Chalcedony)

SiO2 (Silicon Dioxide with Iron Oxide impurities)

Amethyst (variety of Quartz)

SiO2 (Silicon Dioxide)

Iron (Hematite variety)

Iron (Fe) / Hematite (Fe2O3)

Carnelian (a variety of Chalcedony)

Silicon dioxide (SiO2) with iron oxide impurities

Amethyst (Quartz Variety)

Amethyst (Silicon Dioxide - SiO2 with ferric iron impurities)

Chalcedony (Carnelian variety)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Bronzite

Enstatite (var. Bronzite), (Mg,Fe)SiO3

Rose Quartz

Quartz (Silicon Dioxide - SiO2)

Marble

Recrystallized Calcite (CaCO3) Rock

Pink Granite

Granite (Phaneritic igneous rock rich in Alkali Feldspar and Quartz)

Black Onyx and Verdigris Copper Jewelry

Chalcedony (SiO2) with Copper Patina

Rose Quartz

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

Rose Quartz

Quartz (SiO2) with trace amounts of Titanium, Iron, or Manganese

Milky Quartz

Silicon Dioxide (SiO2)

Blue Calcite

Calcite (Calcium Carbonate, CaCO3)

Rose Quartz

Silicon Dioxide (SiO2)

Nephrite Jade (or Serpentine)

Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals

Quartz pebble

Silicon Dioxide (SiO2)

Granite

Granite

Chert (with Quartz Vein)

Chert (Siliceous sedimentary rock, predominantly Microcrystalline Quartz SiO2)

Quartz

Silicon Dioxide (SiO2)

Brick

Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)

Yellow Quartz (Citrine type/Tumbled Quartz)

Silicon Dioxide (SiO2)

Yellow Quartz (Iron-Stained Quartz)

Silicon Dioxide (SiO2) with iron oxide inclusions

Blue Anhydrite

Anhydrite (CaSO4)

Purple Aventurine

Quartzite with Lepidolite (SiO2 + K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Quartz

Silicon Dioxide (SiO2)

Sandstone (Greywacke)

Arenite/Greywacke (SiO2 major)

Citrine Quartz

Silicon Dioxide (SiO2)