Bloodstone / Heliotrope
Silicon dioxide (SiO2) with inclusions
Mineral (variety of Chalcedony)
Category
Mineral, Specifically A Variety Of Quartz
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
mineral
White Quartz (Mushroom Carving)
Quartz (Silicon Dioxide - SiO2)
mineral
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
mineral
Jasper Conglomerate (Puddingstone)
Jasper Conglomerate (Siliceous Sedimentary Rock)
sedimentary
Potassium Feldspar and Quartz
KAlSi3O8 (Potassium Feldspar) and SiO2 (Quartz)
mineral
Aquamarine
Aquamarine (Beryl variety); Be3Al2Si6O18
mineral
Chert (Polished Gemstone / River Stone)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Smoky Quartz and Feldspar Pegmatite
Granitic Pegmatite (chiefly SiO2 and KAlSi3O8)
igneous
Greisen
Greisen
Metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Carnelian
Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)
mineral
Diabase (Trap Rock)
Diabase (also known as Dolerite)
igneous
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in Rhyolitic Matrix
igneous
Rutilated Quartz
Silicon Dioxide with Titanium Dioxide (SiO2 with TiO2 inclusions)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Orange Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Quartz (Milky Quartz vein fragment)
Silicon Dioxide (SiO2)
mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
mineral
Golden Healer Quartz
Silicon Dioxide (SiO2) with limonite/hematite inclusions
mineral
Chert (Common Opal/Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Smoky Quartz with Feldspar
Quartz (SiO2) with Potassium Feldspar (KAlSi3O8)
mineral
Quartz in Basalt (Xenocryst)
Silicon Dioxide (SiO2) in Mafic Igneous Volcanic Rock
Igneous
Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
Mineral (variety of Chalcedony/Quartz)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary (or mineraloid)
Satin Spar (Gypsum)
Hydrous calcium sulfate (CaSO4·2H2O)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Pyrite on Quartz (Fool's Gold in Quartz)
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
mineral
Blue Caribbean Calite
Calcium Carbonate (CaCO3) with trace Aragonite
mineral
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Dyed Pink Quartzite (Jadeite Simulant)
Silicon Dioxide (SiO2) with organic dye
metamorphic
Fancy Jasper
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Flint or Common Chert)
Chert (Cryptocrystalline Silica, SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
sedimentary
Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Milky or Iron-Stained Quartz
Quartz (Silicon Dioxide, SiO2)
mineral