Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Category
Sedimentary (Biogenic Sediment Or Biological Remain)
Browse sedimentary (biogenic sediment or biological remain) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Biogenic Sediment Or Biological Remain) in the encyclopedia
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Greywacke (River Pebble)
Greywacke (Indurated Sandstone)
sedimentary
River Stone (likely Siltstone or fine-grained Quartzite)
Sedimentary clastic rock containing SiO2 and iron oxides
sedimentary
Sandstone (Gneissic or Banded)
Clastic Sedimentary Rock (composed predominantly of SiO2)
sedimentary
Conglomerate (Greenstone/Pebble Conglomerate)
Polymictic Conglomerate
sedimentary
Jasper or Chert pebble
SiO2 (Silicon Dioxide)
sedimentary
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Fossilized Brachiopod
Phylum Brachiopoda (Calcium Carbonate/Silica replacement)
sedimentary
Chert (Flint / Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Tumbled River Pebble (Quartzite / Agate)
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Arkose)
Arkose Sandstone (SiO2 with KAlSi3O8)
sedimentary
Sandstone (Water-worn Pebble)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Pyritized Ammonite
Ammonitida (replaced by Iron Disulfide, FeS2)
sedimentary
Green Chert
Microcrystalline Quartz (SiO2)
sedimentary
Red Jasper (Siltstone/Quartz variety)
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Brachiopod Fossil in Limestone
Phylum Brachiopoda (likely Order Spiriferida), CaCO3 (Calcite)
sedimentary
Banded Sandstone
Clastic Sedimentary Sandstone
sedimentary
Bivalve Fossil (Clam Stone)
Phylum Mollusca, Class Bivalvia
fossil
Petrified Wood
Silicified wood (SiO2)
fossil
Chert Nodule (Commonly known as a Flint or River Cobble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Jasper
Jasper, a microcrystalline variety of Quartz (SiO2) with iron inclusions
sedimentary
Fossilized Shark Tooth (Sand Tiger)
Carcharias taurus (fossil specimen)
sedimentary
Jasper (specifically Bloodstone or Heliotrope variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Goldfish Cracker (Culinary Mimic)
Cibus aurum (Commonly composed of Enriched Wheat Flour and Cheddar Cheese)
Anthropogenic Sedimentary-style Organic Solid
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide impurities
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Ironstone Concretion
Siderite or Hematite Concretion
sedimentary
Concretion
Septarian Concretion (Clay-Ironstone Nodules)
sedimentary
Sandstone Concretion
Ferruginous Sandstone Concretion (SiO2 + FeO(OH))
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Conglomerate (Quartz Pebble Conglomerate)
Quartz Pebble Conglomerate
sedimentary
Sea Glass (Frosted Glass Fragment)
Amorphous Silica (Anthropogenic Sediment)
sedimentary
Conglomerate
Conglomerate
sedimentary
Banded sandstone pebble
Quartz-rich sandstone, likely with a contrasting siltstone or fine-grained sandstone band
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Limestone (Cliff Formation)
Limestone (predominantly CaCO3 as calcite)
Sedimentary
Sandstone (Iron-stained)
Arenite with Limonite/Hematite staining
sedimentary
Mixed River Pebbles and Jasper
Siliciclastic sediment and microcrystalline quartz
sedimentary
Sandstone (likely Greywacke variant)
Arenite
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Pebble (likely Siltstone or fine-grained Sandstone)
Sedimentary Clastic Rock
sedimentary