Conglomerate
Conglomerate (clastic sedimentary rock)
Category
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
Conglomerate
Conglomerate (clastic sedimentary rock)
Puddingstone (Conglomerate)
Conglomerate (clastic sedimentary rock)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (primarily SiO2 with Feldspar)
Chert (specifically Gray Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (with biological crust)
Arenite (SiO2 based)
Chert (specifically Yellow or River Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (clastic)
Clastic Sedimentary Rock (primarily composed of SiO2)
Fossiliferous Limestone
Fossiliferous Calclutite / Bio-calcarenite (CaCO3)
Chert (Arrowhead)
Chert (primarily Microcrystalline Silica, SiO2)
Chert (Jasper/Chalcedony variety)
Microcrystalline Quartz (SiO2)
Chert (Septarian or Nodular variety)
Microcrystalline Quartz (SiO2)
Sandstone
Sandstone (various mineral compositions)
Conglomerate
Conglomerate (clastic sedimentary rock)
Chert (specifically Flint or Dark Chalcedony)
Silicon Dioxide (SiO2)
Conglomerate
Conglomerate (clastic sedimentary rock)
Jasper River Stone
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Sandstone
Arenite
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (SiO2 primarily)
Chert (Common Opal/Agate mixture)
Microcrystalline Quartz (SiO2)
Septarian Nodule (Galt)
Calcareous concretion / Septarian concretion
Sandstone
Arenite (SiO2 based)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Yellow Ochre / Limonite
Limonite (FeO(OH)·nH2O)
Sandstone
Arenite (SiO2 based with various mineral cements)
Travertine
Calcareous Tufa / Travertine (CaCO3)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Cullet Glass (Strawberry Glass)
Amorphous Silicon Dioxide (SiO2) with metallic dopants
Jasper
Silicon Dioxide (SiO2)
Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)
N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)
Sandstone
Arenite
Sandstone (Water-worn Cobble)
Arenite (variable composition, primarily SiO2)
Sandstone (with potential iron-oxide staining)
Arenite (primarily SiO2)
Shale
Fissile Mudstone
Chert / Jasper
Microcrystalline Quartz (SiO2)
Gneiss (Banded Gneiss)
Gneiss
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily Quartz with Fe2O3 staining)
Sandstone (with Limonite staining)
Arenite (primarily SiO2 with FeO(OH)·nH2O)
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
Sandstone (Ferruginous)
Arenite (complex silicate composition with iron oxides)