Jasper
Silicon dioxide (SiO2)
sedimentary
Community gallery
All rocks & minerals
Every specimen the Rock Identifier community has discovered, from desert agates to deep-sea basalts.
Citrine Quartz
Crystalline Silicon Dioxide (SiO2) with iron impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Wavellite
Wavellite (Al3(PO4)2(OH, F)3·5H2O)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz (Milky or Yellow variety)
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Limonite/Ironstone
Limonite (FeO(OH)·nH2O)
mineral
Gneiss with Orthoclase Feldspar
Gneissic Metamorphic Rock with K-Feldspar inclusions
metamorphic
Yellow Jasper
Cryptocrystalline Quartz (SiO2 with iron inclusions)
sedimentary
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Vesicular Basalt
Basalt
igneous
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Chert (Flint nodule)
Chert (SiO2)
sedimentary
Botryoidal Quartz
Silicon Dioxide (SiO2)
mineral
Fossiliferous Limestone with Crinoid Stem Impression
Calcium Carbonate (CaCO3) matrix with Crinoidea fossil
sedimentary
Garnet Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Vesicular Basalt
Extrusive mafic igneous rock
igneous
Diorite
Phaneritic Intermediate Igneous Rock
igneous
Fossiliferous Limestone with Crinoid stems
Limestone (CaCO3) containing Crinoidea fossils
sedimentary
Red Granite
Felsic Intrusive Igneous Rock
igneous
Gneiss
Gneiss
metamorphic
Chert (Flint/Jasper)
Silicon Dioxide (SiO2)
sedimentary
Garnet Schist
Garnetiferous Micaceous Schist
metamorphic
Greenstone
Metabasalt / Greenstone
metamorphic
Calamites Fossill (Lepidodendrales)
Calamites sp. (Family Calamitaceae)
sedimentary
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite (Yellow and Multi-color)
Calcium Fluoride (CaF2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Gneiss
Foliated Metamorphic Rock
metamorphic
Multi-gemstone Quartz and Fluorite Bracelet
Silicon Dioxide (SiO2) and Calcium Fluoride (CaF2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Jadeite Jade
Jadeite (NaAlSi2O6)
metamorphic
Jadeite
NaAlSi2O6; Jadeite silicate mineral
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite-rich Ore
Pyrite (FeS2) with secondary minerals
mineral
Quartzite
Quartzite (SiO2)
metamorphic