Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
Category
Browse sedimentary (man made composite) specimens identified by the Rock Identifier community.
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
Moissanite
Silicon Carbide (SiC)
Diamond
Carbon (C)
Graphite
Graphite (Carbon, C)
Chert (Flint)
Silicon Dioxide (SiO2)
Coquina (Fossiliferous Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Flint
SiO2 (Microcrystalline Quartz / Chert)
Gastly (Trick or Trade Halloween Series)
Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)
Pyrite
Iron Sulfide (FeS2)
Blue Goldstone
Synthetic glass with copper or cobalt/manganese inclusions
Blue Goldstone
Synthetic Aventurescent Glass (Cobalt-doped soda-lime glass)
Blue Goldstone
Aventurine glass (Synthetic borosilicate glass with cobalt and metallic inclusions)
Green Glass Slag
Amorphous Silicon Dioxide (SiO2) with metal oxide impurities
Glass Nugget (Tumbled Glass)
Amorphous Silicon Dioxide (SiO2) with additives
Goldstone (Brown)
Aventurine glass
Chert (specifically Gray/Blue-Gray Chert)
Chert (SiO2)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
Synthetic Zinc/Polycarbonate Composite (Bey-specimen)
Zinc Alloy (Zamak 3) with Polycarbonate (C15H16O2)n Overlay
Sandstone
Sedimentary Clastic Rock (Quartzose Sandstone)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Geode (Unopened)
Quartz Geode (SiO2) / Chalcedony Concretion
Chert (Flint)
Microcrystalline Silica (SiO2)
Diamond
Carbon (C)
Diamond
Carbon (C)
Diamond
Carbon (C)
Diamond (Colorless/White)
Carbon (C)
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
Chert (Flint/Chalcedony)
Silicon Dioxide (SiO2)
Brown Chert
Microcrystalline Quartz (SiO2)
Chert Arrowhead
Chert (Cryptocrystalline variety of Quartz, SiO2)
Chert (Common Opal/Jasper variety)
Cryptocrystalline Quartz (SiO2)
Chert (and/or Flint)
Microcrystalline Quartz (SiO2)
Petoskey Stone
Hexagonaria percarinata (Fossilized Coral)
Chert (with nodule)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (varieties include Flint and Mudstone)
Microcrystalline Silica (SiO2)
Chert
Microcrystalline quartz (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (varietal Chalcedony or Flint)
Silicon dioxide (SiO2) - Microcrystalline Quartz