Quartzite
Quartzite (SiO2)
metamorphic
Category
Mineral (Specifically A Variety Of Quartz)
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Mineral (or mineraloid if microcrystalline)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Rutilated Quartz
Quartz with Rutile inclusions (SiO2 with TiO2 inclusions)
mineral
Gold-bearing Quartz
Native Gold (Au) in Quartz (SiO2) matrix
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Porphyry (Flower Stone)
Porphyry (Andesite or Basalt matrix)
igneous
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Amber
Succinite (specifically for Baltic amber); Chemical formula approximately C10H16O
mineral
Amber
Succinite (specifically for Baltic amber); C10H16O (Variable organic compound)
mineral
Chert (often called Flint or Jasper)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Red Jasper or Chert
Jasper (SiO2, a variety of chalcedony with iron oxide impurities), Chert (SiO2)
sedimentary
Jasper (Imperial Jasper style)
Silicon Dioxide (SiO2) with impurities
sedimentary
Calcite (Yellow/Orange variety - sometimes called Honey Calcite)
Calcite
Mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide)
metamorphic
Chert (Basanite variety) with Quartz Vein
Microcrystalline Quartz (SiO2)
sedimentary
Clear Quartz
Silicon dioxide (SiO2)
mineral
River Quartz / Quartzite Pebbles
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Chert (Golden/Yellow Variety)
Microcrystalline Silica (SiO2)
sedimentary
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Quartz in Host Rock
Silicon Dioxide (SiO2) in Rhyolite or Granite matrix
igneous
Biggs Jasper (Picture Jasper)
Silicon Dioxide (SiO2) - Opaque Silicified Volcanic Ash
sedimentary
Carnelian Agate
Silicon Dioxide (SiO₂), a variety of Chalcedony
mineral
Carnelian
SiO2 (Silicon Dioxide), a variety of Chalcedony
mineral
Chert (White Variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (often called Jasper in this color variety)
Microcrystalline Quartz (SiO2)
sedimentary
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Mineral
Pink Granite
Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)
igneous
Yellow Chert (Jasper)
Chalcedony (SiO2) with iron oxide inclusions
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Fuchsite
Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
mineral
Obsidian
Obsidian (Amorphous volcanic glass, SiO2 rich)
igneous
Septarian Nodule (Septarian Dragon Stone)
Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Pyrite in Quartz (Drill Core)
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2) inclusions
igneous/metamorphic (hydrothermal)
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary