Chert (with Quartz)
Microcrystalline Quartz (SiO2)
sedimentary
Category
Man Made Rock (Sedimentary Analogue)
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Granodiorite
Granodiorite (Quartz + Plagioclase + Alkali Feldspar + Biotite/Hornblende)
igneous
Granite
Granite (Phaneritic Quartz-Feldspar intrusive rock)
Igneous
Coquina
Bioclastic Limestone
sedimentary
Marble
Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.
Metamorphic Rock
Pyrite
Iron Sulfide (FeS2)
mineral
Granite
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
igneous
Clay (as a rock-forming material)
Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)
Mineral
Chert / Flint
Chert (varieties include Flint)
Sedimentary
Grey Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Granite
Granite (Silicic Intrusive Igneous Rock)
Igneous
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
not a rock (man-made origin)
Quartzite
Quartzite (SiO2)
metamorphic
Chert (specifically Gray/Blue-Gray Chert)
Chert (SiO2)
sedimentary
Pink Granite (Alkali-feldspar Granite)
Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)
igneous
Jasper / Chert (Red)
Cryptocrystalline quartz (SiO2)
Sedimentary / Mineral
Chert (often called Flint)
Chert (Cryptocrystalline Quartz, SiO2)
sedimentary
Chert (Flint nodule)
Chert (SiO2)
sedimentary
Desert Rose (Baryte or Gypsum Rose)
Baryte (BaSO4) or Gypsum (CaSO4·2H2O)
mineral
Synthetic Marbled Aggregate (Footwear Component)
Ethylene-vinyl acetate (Croslite™)
not a rock (man-made polymer)
Asphalt (Bituminous Concrete)
Composite material (bitumen binder with mineral aggregate)
man-made rock (technosol)
Coquina
Bioclastic Limestone
sedimentary
Limonite (Iron Ore)
Hydrous Iron Oxide (goethite, lepidocrocite)
Mineral
Granite
Granite (a phaneritic intrusive igneous rock)
igneous
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Diorite (River Pebble)
Intermediate plutonic igneous rock
igneous
Basalt
Basalt (containing plagioclase, pyroxene, and olivine)
igneous
Blue Slag Glass
Amorphous Silica (Byproduct of smelting)
Antropogenic (Man-made)
Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
man-made glass
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
mineraloid (man-made)
Slag Glass (Cullet)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Anthropogenic (Man-made)
Slag (Anthropogenic Glass/Iron byproduct)
Ferro-silicate Slag
Anthropogenic (Man-made)
Artisanal Glass Beads (Simulated Goldstone or Aventurine Glass)
Silicon Dioxide (SiO2) with metallic inclusions
man-made material
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Chipped Glass/Plastic Fragment
Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic
Man-made material (simulant/artifact)
Goldstone (Red)
Aventurine Glass
Man-made material (Simulated Mineral)
Coquina
Bioclastic Limestone
sedimentary