Blue Quartzite
Quartzite (specifically a variety enriched with blue-coloring minerals)
Metamorphic Rock
Category
Mineral (Specifically A Variety Of Quartz)
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Tiger's Eye
Tiger's Eye (a variety of Quartz, SiO₂)
Mineral (specifically a gemstone variety)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Agate (specifically a small Chalcedony nodule)
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
Agate (Carnelian / Chalcedony)
Silicon Dioxide (SiO2)
mineral
Peach Aventurine
Quartz variety (SiO2 + Hematite/Goethite inclusions)
mineral
Chert (Iron-stained)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Yellow Topaz (Imperial or Precious Topaz)
Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)
mineral
Green Aventurine
Aventurine (a variety of Quartz, SiO2)
Mineral
Chert (Chalk-associated Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
sedimentary
Citrine Quartz
Silicon Dioxide (SiO2) - Ferric Iron impurities
mineral
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide (SiO2) with iron oxide and other mineral impurities
sedimentary (chemical/biological origin)
Chert (often called Flint)
Chert (Microcrystalline or Cryptocrystalline Quartz, SiO2)
sedimentary
Blue Lace Agate
Chalcedony (SiO2)
mineral
Chert (Nodule)
Microcrystalline quartz (SiO2)
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (varieties include Flint and Jasper)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
sedimentary
Granodiorite
Granodiorite (Intermediate to Felsic Intrusive Rock)
igneous
Chert (Smoky variety)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite (specifically Milky Quartz variety)
Quartz (SiO2)
metamorphic
Red Jasper
Jasper (Silica with Hematite impurities), SiO2
sedimentary
Red Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron Oxide impurities (Hematite)
sedimentary
Rutilated Quartz
SiO2 (Quartz) with TiO2 (Rutile inclusions)
Mineral
Rough Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Hematoid Quartz
Ferruginous Quartz (SiO2 with Fe2O3 inclusions)
mineral
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (specifically Agate or Carnelian variety)
Cryptocrystalline Silica (SiO2)
mineral
Banded Agate (specifically Botswana Agate or Water-line Agate)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
mineral
Tourmalinated Quartz
Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Pink Satin Spar (Satin Spar Selenite Dyed)
Gypsum (CaSO4·2H2O)
mineral
Jasper Conglomerate (Puddingstone)
Siliceous Conglomerate (Quartz and Jasper clasts in a fine-grained matrix)
sedimentary
Chert (Nodule)
Chert (Silicon Dioxide, SiO2)
sedimentary
Banded Agate (Onyx variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Ocean Jasper
Silicon Dioxide (SiO2) with various inclusions
Mineral (Variety of Quartz)
Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
mineral
Porphyry
Porphyritic Rhyolite or Andesite
igneous
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Satin Spar
Fibrous Gypsum (CaSO4·2H2O)
mineral