Chert (Flint) with Limestone Matrix
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Category
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
Chert (Flint) with Limestone Matrix
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
Fossiliferous Chert (with Fossil Shells)
Silicon Dioxide (SiO2) with biogenic inclusions
Amber
Succinite (C10H16O)
Zebra Marble
Metamorphosed Alabaster/Limestone (CaCO3)
Orthoceras Fossil Limestone
Orthoceras (extinct Cephalopod fossil) in Matrix
Fossilized Rugose Coral (Horn Coral)
Order Rugosa
Petrified Wood
Silicified Wood (SiO2)
Coquina / Shelly Limestone
Coquina (Biogenic Limestone)
Chert with Calcite Veining
Microcrystalline Quartz (SiO2) with Calcium Carbonate (CaCO3) veins
Chert Pebble
Microcrystalline or cryptocrystalline Quartz (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Green Jasper (with Quartz veining)
Jasper (Silica-rich microcrystalline variety of Quartz), formula: SiO2
Graphite Schist
C (Carbonaceous Schist)
Banded Chert (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert Pebble
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Chert (Iron-stained)
Microcrystalline silica (SiO2) with trace Iron oxide (Fe2O3)
Chert / Flint
Chert (Cryptocrystalline Quartz, SiO2)
Jasper
Silicon dioxide (SiO2)
Chert / Flint (with quartz or calcite inclusion)
Silicon dioxide (SiO2)
Coprolite
Coprolite (fossilized feces)
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Cherty Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Fossiliferous Limestone (Coquina)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Chert (Flint)
Microcrystalline Silica (SiO2)
Petrified Wood
Silicified wood (primarily SiO2)
Chert (with Limonite staining)
Microcrystalline Quartz (SiO2)
Chert (specifically Brown Chert or Flint)
Cryptocrystalline Quartz (SiO2)
Petrified Dinosaur Bone (Gembone)
Agatized Dinosaur Bone
Chert (and/or Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or cryptocrystalline quartz (SiO2)
Chert (River Cobble)
Chert (Cryptocrystalline Quartz, SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
Chert (and Limestone)
Chert (consisting of Microcrystalline Quartz, SiO2)
Chert (Field Pebble)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
Chert (specifically Pink Chert or Jasperized Chert)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Glauconitic Sandstone (Greenstone)
Glauconitic Siliciclastic Sandstone (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2
Chert (often called Flint in this variation)
Silicon dioxide (SiO2) - Microcrystalline quartz
Chert (specifically Flint or Jasper variant)
Microcrystalline silica (SiO2)
Red Chert (Jasper)
Silicon Dioxide (SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)