Chert (Iron-stained)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Category
Mineral, Variety Of Quartz
Browse mineral, variety of quartz specimens identified by the Rock Identifier community.
Citrine Quartz
Crystalline Quartz (SiO2 with iron impurities)
mineral
Chalcedony with Druzy Quartz Geode
Silicon Dioxide (SiO2)
mineral
Lepidolite with Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide - SiO2)
mineral
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Black Tourmaline (Schorl)
Sodium Iron Aluminum Borosilicate (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Diorite (River Cobble)
Intermediate Phaneritic Plutonic Rock
Igneous
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Puddingstone (Jasper Conglomerate)
Conglomerate (specific type: Jasper Conglomerate or Hertfordshire Puddingstone)
Sedimentary
Banded Agate (Agatized Geode Slice)
Silicon Dioxide (SiO₂)
mineral
Blue Lace Agate
Chalcedony (SiO2) with trace impurities
mineral
Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Sodium Iron Aluminum Borosilicate)
mineral
Green Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO₂)
mineral
Yellow Quartz (Rough)
Silicon Dioxide (SiO2)
mineral
Aura Quartz Geodes (Lab-Altered)
Silicon Dioxide (SiO2) with Metallic Vapor Deposition
mineral
Obsidian
Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)
igneous
Mahogany Obsidian
Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions
igneous
Moss Agate
Silicon Dioxide (SiO2) with inclusions
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Quartz (Milk Quartz Cobble)
Silicon Dioxide (SiO2)
mineral
Blue Quartz with Dumortierite/Magnesio-riebeckite inclusions
Quartz (SiO2) containing Dumortierite (Al7(BO3)(SiO4)3O3)
igneous/metamorphic
Dyed Quartz Geode
Silicon Dioxide (SiO2) with artificial pigment
mineral
Garden Quartz (Phantom Quartz)
Silicon Dioxide (SiO2) with inclusions (Chlorite, Feldspar, Goethite, Hematite)
Mineral
Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
mineral
Sunstone with Black Tourmaline (Arfvedsonite)
Feldspar (Na,Ca)(Al,Si)4O8 with Schorl Na(Fe3+)3Al6(Si6O18)(BO3)3(OH)3(OH)
mineral
Granite Pebble
Granite (a plutonic igneous rock composed primarily of quartz, feldspar, and mica/amphibole)
igneous
Agate (or Banded Agate)
Agate (a variety of Chalcedony, which is a cryptocrystalline form of Quartz); Chemical Formula: SiO₂ (Silicon Dioxide)
Mineral, specifically a Cryptocrystalline Quartz variety
Granite Glacial Erratic
Intrusive Phaneritic Felsic Rock (Granite)
igneous
Quartz (Druzy on Matrix)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Blue Calcite
Calcium Carbonate (CaCO3)
mineral