White Quartz
Silicon Dioxide (SiO2)
mineral
Category
Anthropogenic (Man Made Material Mimicking Sedimentary Rock)
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
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Murex Fossil
Muricidae (Calcium Carbonate fossilization)
fossil
Flint
Microcrystalline quartz (SiO2)
sedimentary
White Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Slag Glass
Ferro-silicate glass (Slag)
igneous (man-made/industrial)
Polished red jasper (likely hematite-bearing jasper)
Jasper, microcrystalline quartz (SiO₂), colored chiefly by iron oxides such as hematite/goethite
mineral
Quartz
SiO2
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Yellow Calcite
Calcium Carbonate, CaCO3
mineral
Quartz
Silicon dioxide (SiO2)
Mineral
Sea Glass
Amorphous Silica (Glass) SiO2
Mineraloid (Man-made origin)
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Red Jasper
Microcrystalline Quartz (SiO2 with Iron Oxide impurities)
sedimentary
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Flint
Microcrystalline quartz (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz
Silicon dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 primarily)
sedimentary
Magnetite or Ironstone Nodule
Magnetite (Fe3O4) or Hematite-rich Sedimentary Nodule
mineral
Flint
SiO2 (Microcrystalline Quartz)
sedimentary
Agate
Silicon dioxide (chalcedony), SiO2
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Petrified Wood / Fossilized Wood
Silicified Wood (Silicon Dioxide - SiO2)
fossil
Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Kyanite
Kyanite (Al2SiO5)
mineral
Siltstone Pebble
Siltstone (primarily SiO2 with Al2O3)
sedimentary
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Water-worn Pebbles)
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Petrified Wood (Silicified Wood)
fossil
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral