Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite/Tourmaline inclusions
igneous
Category
Sedimentary And Igneous (Mixed)
Browse sedimentary and igneous (mixed) specimens identified by the Rock Identifier community.
Learn about Sedimentary And Igneous (Mixed) in the encyclopedia
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Greywacke
Lithic Sandstone (Greywacke)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Asphalt (Bituminous pavement fragment)
Artificial conglomerate / Bitumen-Aggregate mixture
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Mixed Quartz and Aventurine Chips
Silicon Dioxide (SiO2) with various inclusions
mineral
Polygenetic Conglomerate (Puddingstone)
Conglomerate (SiO2 matrix with mixed clasts)
sedimentary
Gossan (Iron Cap)
Limonitic Gossan (Fe2O3·nH2O mixed)
sedimentary
Mixed Gravel and Pebbles
Polylithic Alluvial Aggregate
igneous, sedimentary, and metamorphic mix
Chalcedony Agate / Carnelian nodules in Matrix
SiO2 (Silicon Dioxide) with iron oxide inclusions
mineral
Mixed Tumbled Gemstones and River Rocks
Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)
Mixed (Igneous, Sedimentary, Metamorphic, and Minerals)
Glauconitic Sandstone
Glauconitic Sandstone (Quartz with Glauconite)
sedimentary
Granite (Pink/Potassium Feldspar Granite)
Felsic Plutonic Rock (Potassium Feldspar, Quartz, Mica, and Amphibole)
igneous
Jasper and Quartz Pebble
Silicon dioxide (SiO2) microcrystalline quartz variety
sedimentary
Pink Granite
Phaneritic Plutonic Felsic Rock (K-feldspar rich)
igneous
Mixed Mineral Collection (with Titanium Aura Quartz)
Silicon Dioxide (SiO2) with metallic coatings and various silicates
mineral
River Pebbles (White Quartz and Basalt mix)
Mixed Clastic Sedimentary Assemblage (SiO2 and Mafic Volcanics)
sedimentary
Graphite
Graphite (Native Carbon, C)
metamorphic
Granite (Pink/Alkali Feldspar Granite)
Plutonic Igneous Rock (Granite)
igneous
Conglomeratic sandstone or breccia
Lithic arkose / polymictic conglomeratic sandstone
sedimentary
Graywacke (River Cobble)
Graywacke (Lithic Sandstone)
sedimentary
Yellow Chert (Chert / Jasper)
Silicon Dioxide (SiO2 / Microcrystalline Quartz)
sedimentary
Bumblebee Jasper
Anhydrite with Sulfur, Hematite, and Orpiment (SiO2/CaSO4 mixture)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Granite
Granite; primarily quartz, alkali feldspar, plagioclase, and biotite/hornblende
igneous
Graphite
Graphite (Native Carbon, C)
metamorphic
Epidote in Granite Gneiss
Epidote bearing Orthogneiss (Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Mixed rounded stream pebbles
Most appear to be granitic and mafic igneous rocks, including granite, gneiss, basalt, and possibly quartzite; exact identification is uncertain from the image.
igneous
Asphalt / Bituminous Aggregate
Bituminous mixture (Hydrocarbon-based sediment)
sedimentary
Granite and Mixed Landscape Gravel
Plutonic Igneous Rock / Weathered Alluvium
igneous
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Chert Pebble
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chrysocolla
Hydrated copper phyllosilicate, Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
mineral
Tumbled jasper or chalcedony pebble
Microcrystalline quartz (SiO₂), likely jasper/chalcedony with iron-oxide staining
mineral
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Pink Granite
Felsic Plutonic Rock (Granite)
igneous
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions (SiO2 + Fe2O3)
Igneous
Pink Granite
Phaneritic intrusive igneous rock with dominant Alkali Feldspar
igneous
Pink Granite
Granite (Felsic Plutonic Igneous Rock)
igneous
Pink Granite (Crystalline Granite)
Igneous Intrusive Rock (Felsic Plutonic)
igneous
Peacock Ore
Bornite (Cu5FeS4)
mineral
Pyrite in Quartz
FeS2 (Iron Pyrite) with SiO2 (Quartz)
Mineral/Igneous/Hydrothermal