Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Category
Mineral (Synthetic)
Browse mineral (synthetic) specimens identified by the Rock Identifier community.
Learn about Mineral (Synthetic) in the encyclopedia
View all →
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Magnetite (in matrix)
Magnetite (Fe3O4)
mineral
Jasper with Manganese Dendrites
Silicon Dioxide (SiO2) with Oxide Mineral Inclusions
sedimentary
Gneiss
Gneissic Metamorphic Rock
metamorphic
Olivine (Peridotite)
Magnesium iron silicate (Mg, Fe)2SiO4
igneous
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Chrysocolla
Chrysocolla; (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Goethite
Goethite (FeO(OH))
mineral
Amethyst
Quartz (Silicon Dioxide with iron impurities), SiO2
mineral
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
gemstone
Amethyst on Agate
Crystalline Quartz (SiO2) with trace Iron (Fe3+)
mineral
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate (variety of Microcline)
mineral
Black Opal
Hydrated Amorphous Silica (SiO2 "n" H2O)
gemstone
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Grape Agate
Botryoidal Amethystine Chalcedony (SiO2)
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Amazonite
Microcline-type Feldspar (KAlSi3O8)
mineral
Chrysocolla (in Host Rock)
Hydrated copper silicate - Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
mineral
Aquamarine (Beryl)
Beryl (Be3Al2Si6O18 with Fe impurities)
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Geode (Unopened)
Chalcedony Geode (Hydrated Silicon Dioxide, SiO2)
sedimentary
Ruby in Zoisite
Anyolite (combination of Ca2Al3(SiO4)3(OH) and Al2O3:Cr)
metamorphic
Amethyst
Quartz (Silicon Dioxide, SiO2)
mineral
Hematite Nodules (Moqui Marbles style)
Iron Oxide (Fe2O3)
mineral
Citrine (Heat-treated Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Sunstone
Oligoclase (Plagioclase Feldspar subclass), (Ca,Na)(Al,Si)4O8
mineral
Amethyst (Rough Crystal)
Silicon Dioxide (SiO2 with ferric iron impurities)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Biotite on Quartz Matrix
Biotite - K(Mg,Fe)3(AlSi3O10)(OH,F)2 with Quartz (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst Geode
Silicon Dioxide (SiO2) with iron impurities
mineral
Jasper with Epidote
Silicon Dioxide (SiO2) with Calcium Aluminum Iron Silicate (Ca2(Al,Fe)3(SiO4)3(OH))
sedimentary
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Moonstone
Orthoclase (Potassium Aluminum Silicate, KAlSi3O8) with inclusions of Albite
mineral
Botryoidal Chalcedony (likely Chert or Agatized Coral)
Silicon Dioxide (SiO2)
mineral
Sunstone (Oregon Sunstone)
Labradorite (Feldspar variety) - (Ca, Na)(Al, Si)4O8
mineral
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral