Serpentine (Serpentinite)
Serpentinite (complex of minerals including Antigorite, Lizardite, and Chrysotile); (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Category
Browse marble specimens identified by the Rock Identifier community.
Serpentine (Serpentinite)
Serpentinite (complex of minerals including Antigorite, Lizardite, and Chrysotile); (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Chert (Field Stone)
Chert (SiO2)
Chert (White Chert/Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz or Cryptocrystalline Silica (SiO2)
Sandstone
Arenite (primarily SiO2)
Limestone
Calcium carbonate (CaCO3)
Chert (often called Flint)
Silicon Dioxide (SiO2)
Diamond (or Diamond Simulant)
Carbon (C) - Native Element
Chert (Green variety)
Silicon Dioxide (SiO2)
Chert (Field Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Diamond
Carbon (C)
Orange Calcite
Calcium Carbonate (CaCO3)
Basalt Pebble
Basalt
Limestone (specifically Dolomitic Limestone)
Calcium Magnesium Carbonate (CaMg(CO3)2)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Bivalve Fossil (Clam/Mollusk)
Class: Bivalvia (Order: Veneroida), Calcium Carbonate (CaCO3)
Limestone
Limestone (Calcium Carbonate: CaCO3)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Siliceous Mudstone variant)
Microcrystalline quartz (SiO2)
Limestone Pebble
Limestone (Calcium Carbonate, CaCO3)
Diamond (in jewelry)
Carbon (C)
Quartzite Pebble
Quartzite
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (specifically Flint or Common Opal fragment)
Cryptocrystalline Silica (SiO2)
Sandstone (Quartzite Pebble)
Arenite (SiO2)
Chert (variously identified as Flint)
Microcrystalline Quartz (SiO2)
Serpentine (Serpentinite)
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
Basalt Pebble
Extrusive mafic igneous rock
Pyrite in Shale
Iron Disulfide (FeS2) in Argillaceous Shale
Chert (Commonly known as Jasper or Flint)
Microcrystalline Quartz (SiO2)
Caribbean Calcite
Calcite and Aragonite (CaCO3)
Chert (and Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Serpentine
Antigorite / Lizardite / Chrysotile [(Mg,Fe)3Si2O5(OH)4]
Green Chert
Silicon Dioxide (SiO2)
Gray Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (often called Flint or Jasper when red)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert
Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)