Worked chert (likely flint)
Microcrystalline quartz/chalcedony, SiO₂
Category
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
Worked chert (likely flint)
Microcrystalline quartz/chalcedony, SiO₂
Quartz
Silicon Dioxide (SiO2)
Jasper Pebble
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Silicon Dioxide (SiO2)
Tumbled yellow calcite
Calcite (calcium carbonate, CaCO₃)
Flint
Chert (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Brown Chert
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2 with iron oxide impurities)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
Limestone
Limestone (Calcium Carbonate - CaCO3)
Polished brown jasper
Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Picture Jasper
SiO2
Limestone
Calcium Carbonate (CaCO3)
Chert (Yellow Jasper/Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Limestone with Lichen/Algae
Sedimentary Calcium Carbonate (CaCO3)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Green Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions
Chert
Microcrystalline quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz / Chert
Limestone Pebble
Limestone (Calcium Carbonate, CaCO3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Diamond
Carbon (C)
Limestone with Fossil Impression
Calcium Carbonate (CaCO3)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Chert
Microcrystalline quartz (SiO2)
Coquina / Fossiliferous Limestone
Fossiliferous Limestone (Calcite, CaCO3)
Chert
Microcrystalline Quartz (SiO2)
Limestone (with crushed gravel)
Limestone (Calcium Carbonate, CaCO3)
Sandstone
Arenite
Crushed Limestone
Calcium Carbonate (CaCO3)
Chert
Chert (Microcrystalline Quartz, SiO2)
Chert Nodule (Flint)
Microcrystalline Quartz (SiO2)