Jasper Marble
Silicon Dioxide (SiO2) with Impurities
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Jasper Marble
Silicon Dioxide (SiO2) with Impurities
Chert (and/or Flint)
Microcrystalline Quartz (SiO2)
Chert (Common Opal/Jasper variety)
Cryptocrystalline Quartz (SiO2)
Petoskey Stone
Hexagonaria percarinata (Fossilized Coral)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (Common Variety, Jasper)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Chert (Alpha-Quartz, SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (SiO₂)
Red Chert (Jasper)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
Pyrite
Iron Disulfide (FeS2)
Banded Calcite or Travertine
Calcium Carbonate (CaCO3)
Pyrulite (Pyrite / Chalcopyrite)
Iron Sulfide (FeS2) or Copper Iron Sulfide (CuFeS2)
River Rock (River Cobbles)
Fluvial Conglomerate Clasts (primarily composed of various minerals such as Quartz, SiO2)
Diamond (in a jewelry setting)
Carbon (C)
Quartz (Microcrystalline/Chert)
Silicon Dioxide (SiO2)
Sea Shell (Fighting Conch Fragment)
Calcium Carbonate (CaCO3) - Strombus alatus fragment
Petrified Wood
Silicified Wood (SiO2)
Chert (or Flint)
Chert (cryptocrystalline quartz), SiO2
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Flint (or Chert)
Cryptocrystalline Quartz (SiO2)
Jasper
Silicon Dioxide (SiO2)
Fossilized Coral (Petoskey-style)
Hexagonaria percarinata (Fossilized Rugose Coral)
Chert (often called Flint or Agate nodule)
Cryptocrystalline Quartz (SiO2)
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
Chalk
CaCO3 (primarily Calcium Carbonate), biogenic sedimentary rock
Botryoidal Hematite (Iron Stone Conglomerate)
Hematite (Fe2O3) in sedimentary matrix
Coquina
Coquina (Bioclastic Limestone)
Corundum (Ruby variety)
Aluminium oxide (Al2O3)
Diamond (as set in a gold ring)
Carbon (C)
Brecciated Jasper
Silicon Dioxide (SiO2) with varying mineral inclusions (Iron Oxide, Hematite, Clay)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Diamond
Native Carbon (C)
Chert (Quartz Variety)
Chert (Silicon Dioxide, SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Coarse-grained Jasper or Jasper Conglomerate
Silicon Dioxide with Iron Oxide (SiO2) + Fe2O3
Chert (and/or Flint)
Chert (Cryptocrystalline variety of Quartz, SiO2)
Chalk
Calcium Carbonate (CaCO3)
Pebble (likely a type of sandstone or quartzite pebble)
Clastic Sediment (specifically, a rudite-sized clast). If the pebble is composed of a specific rock type, its scientific name would be that rock type (e.g., 'Quartzite pebble', 'Granite pebble', 'Chert pebble'). Given its appearance, it is likely a metamorphic quartzite pebble or a hard sandstone pebble.