Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Chalcedony Variety)
Browse mineral (chalcedony variety) specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amazonite
K(AlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Citrine
Quartz (SiO₂) variety
Mineral
Chalcedony (Common Opal or Agate variant)
Silicon Dioxide (SiO₂)
mineral
Rough Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Kyanite (Purple variety)
Kyanite (Al₂SiO₅)
metamorphic
Citrine
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Beryl (Variety Mix)
Be3Al2(Si6O18)
Mineral
Banded Agate (specifically Botryoidal/Orbicular Agate)
Silicon Dioxide (SiO2)
Mineral (variety of Chalcedony/Quartz)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and magnesium inclusions
Mineral (Variety of Quartz/Chalcedony)
Banded Chert / Banded Jasper (likely a variety of Chert/Chalcedony)
Chert (microcrystalline quartz)
Metamorphic Rock
Agate Geode
Cryptocrystalline Quartz (SiO2)
mineral
Agate
Agate (Microcrystalline Quartz, SiO2)
mineral
Moss Agate
Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide
mineral
Dalmatian Stone
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Granodiorite
Granodiorite (Phaneritic intrusive igneous rock containing Plagioclase, Quartz, and Biotite/Amphibole)
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Chrysoberyl (Cyclic Twin)
Beryllium Aluminum Oxide (BeAl2O4)
mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO₂)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Tourmalinated Quartz
Silicon Dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)
mineral
Rough Garnet (Almandine)
Almandine Garnet (Fe3Al2(SiO4)3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rough Emerald/Green Beryl
Beryl (Be3Al2(SiO3)6) with trace amounts of Chromium or Vanadium
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic