Rock Identifier

Category

Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)

Browse organic (if resin) or synthetic (if glass); simulating sedimentary or metamorphic (for natural stones) specimens identified by the Rock Identifier community.

Amethyst (Silicon Dioxide with Iron impurities (SiO2)) — mineral

Amethyst

Silicon Dioxide with Iron impurities (SiO2)

Cubic Zirconia (Simulated Diamond) (Zirconium Dioxide (ZrO2)) — mineral (synthetic)

Cubic Zirconia (Simulated Diamond)

Zirconium Dioxide (ZrO2)

mineral (synthetic)

Granite Pebble (Granite (Phaneritic Acidic Igneous Rock)) — igneous

Granite Pebble

Granite (Phaneritic Acidic Igneous Rock)

Greenstone (Greenschist facies) (Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)) — metamorphic

Greenstone (Greenschist facies)

Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)

Schist (Garnet-Mica Schist) (Garnet-Mica Schist (X-Y)3Z2(SiO4)3) — metamorphic

Schist (Garnet-Mica Schist)

Garnet-Mica Schist (X-Y)3Z2(SiO4)3

Quartz Vein in Host Rock (Gabbro or Basalt) (Silicon Dioxide (SiO2) with Mafic Silicates) — metamorphic/igneous

Quartz Vein in Host Rock (Gabbro or Basalt)

Silicon Dioxide (SiO2) with Mafic Silicates

metamorphic/igneous

Cubic Zirconia (CZ) Jewelry (Zirconium dioxide (ZrO2)) — mineral (synthetic)

Cubic Zirconia (CZ) Jewelry

Zirconium dioxide (ZrO2)

mineral (synthetic)

Amber (Succinite (fossilized resin)) — Organic Mineraloid

Amber

Succinite (fossilized resin)

Organic Mineraloid

Chalcedony (Common Agate) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Common Agate)

Silicon Dioxide (SiO2)

Aventurine (Tan/Cream colored) (Quartz (SiO2) with mineral inclusions) — mineral

Aventurine (Tan/Cream colored)

Quartz (SiO2) with mineral inclusions

Moonstone with Black Tourmaline (Orthoclase (KAlSi3O8) with Schorl inclusions (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Moonstone with Black Tourmaline

Orthoclase (KAlSi3O8) with Schorl inclusions (NaFe3Al6(BO3)3Si6O18(OH)4)

Yellow Jasper / Chert (Silicon Dioxide (SiO2) with Goethite or Limonite inclusions) — sedimentary

Yellow Jasper / Chert

Silicon Dioxide (SiO2) with Goethite or Limonite inclusions

Agate Geode / Nodular Chalcedony (Silicon Dioxide (SiO2) with impurities) — mineral

Agate Geode / Nodular Chalcedony

Silicon Dioxide (SiO2) with impurities

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Chert Pebble / Brachiopod Fossil Internal Mold (Silicon Dioxide (SiO2) / Fossil: Brachiopoda (generic internal mold)) — sedimentary

Chert Pebble / Brachiopod Fossil Internal Mold

Silicon Dioxide (SiO2) / Fossil: Brachiopoda (generic internal mold)

Siltstone (Siltstone) — sedimentary

Siltstone

Siltstone

Ferruginous Sandstone (Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)) — sedimentary

Ferruginous Sandstone

Arenite with Iron-Oxide Cement (FeO(OH)·nH2O / Fe2O3)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, Chrysotile)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, Chrysotile)

Amber / Copal (Fossilized Tree Resin (Succinate)) — Mineraloid

Amber / Copal

Fossilized Tree Resin (Succinate)

Dyed Magnesite (often sold as Red Turquoise or Howlite) (Magnesium Carbonate (MgCO3)) — mineral

Dyed Magnesite (often sold as Red Turquoise or Howlite)

Magnesium Carbonate (MgCO3)

Limonite Concretion (Ironstone) (Limonite (FeO(OH)·nH2O) with Goethite and Hematite) — sedimentary

Limonite Concretion (Ironstone)

Limonite (FeO(OH)·nH2O) with Goethite and Hematite

Ferruginous Sandstone (Arenite with Iron-oxide cement (composed of Quartz and Limonite/Hematite)) — sedimentary

Ferruginous Sandstone

Arenite with Iron-oxide cement (composed of Quartz and Limonite/Hematite)

Sandstone (Ferruginous) (Arenite with Iron Oxide cement (primarily SiO2 with Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide cement (primarily SiO2 with Fe2O3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

Chert (and Chert Flake) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (and Chert Flake)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Limestone Breccia (Sedimentary Breccia (Calcareous)) — sedimentary

Limestone Breccia

Sedimentary Breccia (Calcareous)

Blue Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Blue Calcite

Calcite (Calcium Carbonate, CaCO3)

Greenschist (Greenstone) (Greenschist) — metamorphic

Greenschist (Greenstone)

Greenschist

Eclogite (Eclogite (comprising Omphacite and Garnet)) — metamorphic

Eclogite

Eclogite (comprising Omphacite and Garnet)

Baltic Amber (Butterscotch or Egg Yolk Variety) (Succinite (chemical formula: C10H16O)) — Organic Gemstone (not a rock or mineral)

Baltic Amber (Butterscotch or Egg Yolk Variety)

Succinite (chemical formula: C10H16O)

Organic Gemstone (not a rock or mineral)

Ammonite Fossil (Ammonoidea (subclass)) — sedimentary

Ammonite Fossil

Ammonoidea (subclass)

Wishing Stone (Quartz-Veined Pebble) (Hydrothermal Quartz in Metasedimentary Matrix (SiO2/Matrix)) — metamorphic

Wishing Stone (Quartz-Veined Pebble)

Hydrothermal Quartz in Metasedimentary Matrix (SiO2/Matrix)

Basalt with Quartz Veins (Amygdaloidal Basalt (matrix) with Crystalline SiO2 (veins)) — igneous

Basalt with Quartz Veins

Amygdaloidal Basalt (matrix) with Crystalline SiO2 (veins)

Banded Agate (specifically Mexican Lace Agate variety appearance) (Silicon Dioxide (SiO2 / Chalcedony)) — mineral

Banded Agate (specifically Mexican Lace Agate variety appearance)

Silicon Dioxide (SiO2 / Chalcedony)

Banded Calcite (often commercially sold as 'Mexican Onyx' or 'Honey Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often commercially sold as 'Mexican Onyx' or 'Honey Onyx')

Calcite (Calcium Carbonate, CaCO3)

Siderite Concretion (Nodule) (Iron Carbonate (FeCO3) Concretion) — sedimentary

Siderite Concretion (Nodule)

Iron Carbonate (FeCO3) Concretion

Celestite (Celestine) Geode (Strontium Sulfate (SrSO4)) — mineral

Celestite (Celestine) Geode

Strontium Sulfate (SrSO4)

Drill Core Samples (Varied Lithology) (Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)) — igneous, sedimentary, and metamorphic

Drill Core Samples (Varied Lithology)

Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)

igneous, sedimentary, and metamorphic

Amethyst Agate (Polished Point) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst Agate (Polished Point)

Silicon Dioxide (SiO2) with iron impurities

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Limestone (Calcium Carbonate (primarily CaCO3 as Calcite or Aragonite)) — sedimentary

Limestone

Calcium Carbonate (primarily CaCO3 as Calcite or Aragonite)