Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide with inclusions (SiO2)
Category
Browse sedimentary (synthetic) specimens identified by the Rock Identifier community.
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide with inclusions (SiO2)
Quartz Geode
Crystalline Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Specular Hematite
Hematite (Fe2O3)
Calcite
Calcium Carbonate (CaCO3)
Chert / Flint
Chert (SiO2)
Green Chalcedony (Green Agate)
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Chalcedony (Common Opal variant or Agate)
Silicon Dioxide (SiO2)
Milky Quartz Pebble with Chert
Silicon Dioxide (SiO2)
Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Orange Calcite
Calcium Carbonate (CaCO3)
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Fuchsite in Quartz
K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Jasper (Green Jasper / Chert)
Silicon Dioxide (SiO2) with iron/clay inclusions
Citrine
SiO2 (Silicon Dioxide)
Pyrite
Iron Disulfide (FeS2)
Blue Chalcedony
Chalcedony (SiO2)
Green Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Chert
Microcrystalline silica (SiO2)
Shungite
Non-crystalline carbon (allotrope of carbon)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Pyrite
Iron Sulfide (FeS2)
Fossilized Shark Tooth (Dermal Denticle or worn tooth fragment)
Elasmobranchii (fossil remains)
Pyrite
Iron Sulfide (FeS2)
Sandstone (with biological crust)
Arenite (SiO2 based)
Pyritic Sandstone
Clastic Sedimentary Rock (Pyrite-bearing Sandstone)
Sandstone Concretion
Clastic Sedimentary Rock - Quartz Arenite / Sandstone
Fossil Coral
Coral Limestone (a type of biogenic sedimentary rock)
River Cobble (Quartzite-rich Sandstone)
Clastic Sedimentary Rock (Litharenite/Quartzite transition)
Red Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Travertine
Terrestrial Sedimentary Form of Calcium Carbonate (CaCO3)
Fossiliferous Limestone with Crinoid stems
Calcite-rich Biogenic Sedimentary Rock (CaCO3)
Ironstone (likely Ferruginous Siltstone/Sandstone)
Ferruginous sedimentary rock (FeOx-rich clastic)
Chert (variations include Flint or Jasper)
Chert (chemical sedimentary rock), Quartz (SiO2)
Stromatolite
Biogenic Sedimentary Rock (Lithified microbial mat)