Mineral; Variety Of Quartz

Tiger's Eye

Silicon Dioxide with inclusions (SiO2)

Granite

Granite (a felsic intrusive igneous rock)

Banded Agate (specifically Moss Agate or Plume Agate variety)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Pyrite

Iron Disulfide (FeS2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Pyrite

Iron Sulfide (FeS2)

Iron-stained Quartz (Gossan/Limonite-coated Quartz)

Silicon Dioxide (SiO2) with Hydrated Iron Oxides (FeO(OH)·nH2O)

Smoky Quartz with Siderite and Pyrite

Silicon Dioxide (SiO2) with Ferrous Carbonate (FeCO3) and Iron Sulfide (FeS2)

Rutilated Quartz (with Garnet pendant)

Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions

Pink Granite

Phaneritic intrusive felsic igneous rock

Chert (Iron-stained)

Microcrystalline Quartz (SiO2)

Chert Pebble (Yellow/Brown Jasper variety)

Microcrystalline Quartz (SiO2)

Chert (Iron-stained)

Microcrystalline quartz (SiO2)

Quartzite

Quartzite (SiO2)

Jasper (var. Ocean or Polychrome Jasper)

Silicon Dioxide (SiO2) with iron and mineral inclusions

Fluorite (Green)

Fluorite (Calcium Fluoride, CaF2)

Quartz in Matrix (possibly Basalt or Siltstone host)

Silicon Dioxide (SiO2) in Host Rock

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Carnelian

Carnelian (Silicon Dioxide - SiO2)

Chert (Chert Nodule with Cortex)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Garden Quartz

Included Quartz (SiO2 with accessory minerals such as Chlorite, Hematite, or Feldspar)

Quartz with Pyrite

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Seraphinite

Clinochlore (a variety of the chlorite group)

Green Calcite

Calcite (Calcium Carbonate, CaCO3)

Pyrite on Quartz

Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)

Rutilated Quartz

Silicon Dioxide (SiO2) with inclusions of Titanium Dioxide (TiO2)

Red Jasper (Siltstone/Quartz variety)

Silicon Dioxide (SiO2) with Hematite impurities

Amazonite

Potassium Aluminum Silicate (KAlSi3O8)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Puddingstone (specifically Michigan/Gowganda Puddingstone)

Conglomerate (Jasper Conglomerate)

Jasper Agate (specifically Brecciated Jasper)

Silicon Dioxide (SiO2) with iron oxide and clay impurities

Quartz Vein on Matrix

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Iron-stained Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite impurities

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Quartz (Engineered Stone Countertop)

Silicon Dioxide (SiO2) within a resin matrix