Jasper (Milky/Cream Variety)
Silicon Dioxide (SiO2) - variety of Chalcedony
sedimentary (chemical/biological)
Category
Anthropogenic Sedimentary Style Organic Solid
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
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Sandstone (Quartzose)
Arenite (SiO2 based typically)
sedimentary
Red Jasper (River Pebble)
Silicon Dioxide (SiO2) with hematite impurities
sedimentary (microcrystalline quartz)
Agate Geode
Cryptocrystalline Quartz (SiO2)
mineral
Quartz Geode
Crystalline Silver Oxide (SiO2) in Calcareous Host
mineral
Yellow Chalcedony (Carnelian/Yellow Agate)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Mineral
Weathered Sedimentary Rock
Sedimentary Rock
Sedimentary
Amber (Copal)
Succinate (Fossilized Tree Resin)
mineraloid
Yellow Jasper
Silicon Dioxide with Iron inclusions (SiO2)
sedimentary
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
sedimentary
Agate Geode
Cryptocrystalline Quartz (SiO2)
mineral
Banded Agate (specifically Crazy Lace Agate style)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Fossil-bearing Sedimentary Rock
Sedimentum cum fossili
fossil
Shale
Laminated Fissile Pelite
sedimentary
Fossiliferous Limestone with Rugose Coral
Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Fossilized Bone
Petrified Bone / Biogenic Sedimentary
fossil
Shale
Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)
sedimentary
Mother of Pearl (Nacre) / Shell Fragment
Biogenic Calcium Carbonate (Aragonite and Conchiolin)
fossil
Limestone Pebble with Crinoid Fossil
Calcium Carbonate (CaCO3) - Fossiliferous Limestone
sedimentary
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
mineral
Pearls
Aragonite (calcium carbonate) and Conchiolin
Mineraloid
Pyritic Shale
Carbonaceous Shale with Iron Pyrite (FeS2)
sedimentary
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Limestone and Quartz Gravel with Petrified Wood
Sedimentary gravel aggregate and fossilized wood
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2)
sedimentary
Chert (Flint nodule)
Chert (SiO2)
sedimentary
Coal
Coal (Sedimentary Rock / Organic Rock)
sedimentary
Fossiliferous Limestone
Bioclastic Limestone (CaCO3)
sedimentary
Fossil Crab
Decapoda (likely Avitelmessus or Raninidae family)
sedimentary
Coal (Bituminous / Anthracite)
Organic Sedimentary Rock (Carbonaceous Rock)
sedimentary
Bituminous Coal
Organic sedimentary rock (humic coal)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Agate Geode
Chalcedony (SiO2 - Silicon Dioxide)
sedimentary (secondary mineral formation)
Bituminous Coal
Organic Sedimentary Rock (Carbon-based)
sedimentary
Petrified Wood
Fossilized wood, permineralized wood (typically composed of SiO2)
fossil
Chert (Chert Nodule with Chalky Cortex)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary