Dalmatian Jasper
Peralkaline rhyolite
igneous
Category
Mineral (Sedimentary Context)
Browse mineral (sedimentary context) specimens identified by the Rock Identifier community.
Gneiss
High-grade regional metamorphic rock (Foliated)
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) - variety of Chalcedony
sedimentary
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
sedimentary
Petrified Wood
Silicified Wood (primarily Chalcedony or Quartz, SiO2)
sedimentary
Petrified Wood
Silicified wood (Quartz, SiO2)
metamorphic
Chert (often called Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Specular Hematite with Pyrite
Iron Oxide (Fe2O3) with Iron Sulfide (FeS2)
mineral
Celestite (Celectine)
Strontium sulfate (SrSO4)
mineral
Red Jasper
Jasper (Silicon Dioxide, SiO2 with Fe2O3 inclusions)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
White Agate (Chalcedony)
Chalcedony (SiO2)
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Carnelian
Carnelian (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Garnet (Almandine/Pyrope variety)
Silicate mineral group; typically Fe3Al2(SiO4)3 (Almandine) or Mg3Al2(SiO4)3 (Pyrope)
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Rhodolite Garnet
Magnesium Aluminum Silicate; formula: (Mg,Fe)3Al2(SiO4)3
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
mineral
Amber
Fossilized Tree Resin (Succinate)
mineral
Black Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Agate (Crazy Lace or Eye Agate)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
mineral
Celestine (or Celestite)
Celestine (Strontium Sulfate, SrSO4)
mineral
Blue Chalcedony (Tumbled)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Druzzy Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral