Chert (specifically Yellow/Honey Jasper variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Category
Igneous Or Sedimentary (Water Worn)
Browse igneous or sedimentary (water worn) specimens identified by the Rock Identifier community.
Yellow Quartz / Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Brecciated Chert
Sedimentary Chert (SiO2) with Calc-Silicate mineralization
sedimentary
Basalt (Amygdaloidal)
Amygdaloidal Basalt
igneous
Yellow Quartz (Iron-stained Quartz)
Quartz (Silicon Dioxide, SiO2) with Hematite/Limonite impurities
mineral
Agate (specifically Chalcedony nodule)
Silicon Dioxide (SiO2)
mineral
Fossilized Gastropod in Chert/Limestone
Internal mold of Gastropoda (Class) with CaCO3 or SiO2 mineral formula
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides
sedimentary
Banded Chert (River Siltstone)
Microcrystalline Quartz (SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz
sedimentary
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Chert (Silicon Dioxide, SiO2)
sedimentary
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral, often found as detrital grains in sedimentary rocks
Jasper with Quartz inclusions
Silicon Dioxide (SiO2) with varying mineral impurities
sedimentary
Sandstone
Arenite
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Cobble (with Iron Staining)
Silicon Dioxide (SiO2)
mineral
Milk Quartz (Common White Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone (Quartzose Sandstone)
Clastic Terrigenous Sedimentary Rock (primarily SiO2)
sedimentary
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
sedimentary
Yellow Chalcedony (Jasper/Chert Pebble)
Silicon Dioxide (SiO2)
sedimentary
Basalt Pebble
Extrusive Mafic Igneous Rock
igneous
Pink Granite (River Pebble)
Felsic Intrusive Igneous Rock
igneous
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
mineral
Chert Pebble with Quartz Veins
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Yellow Jasper/Quartzite Pebble)
Microcrystalline Silicon Dioxide (SiO2)
sedimentary
Granite Pebble
Felsic intrusive igneous rock (consisting primarily of Quartz and Feldspar)
igneous
Granite Cobble
Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)
igneous
Banded Chert (River Pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with iron oxide Fe2O3 cement)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Yellow Jasper
Chalcedony (SiO2 with iron impurities)
sedimentary
Jasper (likely Lake Superior Jasper)
Jasper (Silicon Dioxide, SiO2)
sedimentary