Chalcedony (Tumbled Pebble)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Metamorphic Pseudomorph)
Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.
Learn about Mineral (Metamorphic Pseudomorph) in the encyclopedia
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White Quartz Pebble
Silicon Dioxide (SiO2) - Quartz
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Quartzite / Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Blue Quartz (Dumortierite Quartz)
Silicon Dioxide (SiO2) with Dumortierite inclusions (Al7BO3(SiO4)3O3)
mineral
Yellow Calcite (Polished)
Calcium Carbonate (CaCO3)
mineral
Galena (with Matrix)
Lead Sulfide (PbS)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky)
Silicon Dioxide (SiO2)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Mixed Quartz and Aventurine Chips
Silicon Dioxide (SiO2) with various inclusions
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate Hydroxide - NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH
mineral
Rose Quartz, Fuchsite, and Green Aventurine Collection
Silicon Dioxide (SiO2) and Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(OH, F)2)
mineral
Milky Quartz in Siltstone or Feldspar
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sunstone
Aventurine Feldspar (Plagioclase or Oligoclase)
mineral
Milky Quartz Pebbles
Silicon Dioxide (SiO2)
mineral
Schorl (Black Tourmaline)
Sodium iron aluminum borosilicate (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Mica (Lepidolite or Muscovite)
Phyllosilicate mineral (KAl2(AlSi3O10)(OH)2 for Muscovite)
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Biotite in Host Matrix
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Amazonite
Microcline (KAlSi3O8 variant)
mineral
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
mineral
Green Tourmaline (Verdelite)
Schorl-Elbaite series (Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Garnet
Garnet Group (Silicate Minerals)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral