Pyrite (Iron Pyrite)
Iron Disulfide (FeS2)
Category
Browse anthropogenic material (man made sedimentary mimic) specimens identified by the Rock Identifier community.
Pyrite (Iron Pyrite)
Iron Disulfide (FeS2)
Botryoidal Agate
Chalcedony (Silicon Dioxide, SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Red Jasper (nodule)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Pyrite
Iron Disulfide (FeS2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
Amber
Succinate (Fossilized Tree Resin)
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Jasper
Jasper (Silicate mineral, SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Siderite Concretion (Nodule)
Iron Carbonate (FeCO3) Concretion
Banded Chert
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone (with Crinoids/Coral)
Fossiliferous Limestone (CaCO3)
Crazy Lace Agate
Silicon Dioxide (SiO2) with iron and aluminum inclusions
Fluorite and Red Jasper
Fluorite (Calcium Fluoride, CaF2) and Red Jasper (Silicon Dioxide, SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Ironstone Concretion (Limonite/Goethite)
Ferruginous Sandstone or Limonite (FeO(OH)·nH2O)
Limestone (Brecciated/Recrystallized)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Red Quartzite
Quartzite (SiO2)
Puddingstone (Gowganda Tillite/Lorrain Quartzite)
Jasper Conglomerate
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Chert / Flint
Microcrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Optical Calcite
Calcite (Calcium Carbonate, CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (CaSO4·2H2O)
Jasper with Iron Inclusions
Silicon Dioxide (SiO2) with impure Iron Oxides
Tree Agate
Silicon Dioxide (SiO2) with Chlorite inclusions