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.

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Bloodstone / Heliotrope (Silicon dioxide (SiO2) with inclusions) — Mineral (variety of Chalcedony)

Bloodstone / Heliotrope

Silicon dioxide (SiO2) with inclusions

Mineral (variety of Chalcedony)

Septarian Nodule (Septarian Concretion (CaCO3 with Siderite/Calcite/Aragonite)) — sedimentary

Septarian Nodule

Septarian Concretion (CaCO3 with Siderite/Calcite/Aragonite)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Prasiolite (Silicon Dioxide (SiO2) with iron impurities) — mineral

Prasiolite

Silicon Dioxide (SiO2) with iron impurities

Yellow Quartz (Citrine or Quartzite Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine or Quartzite Pebble)

Silicon Dioxide (SiO2)

Sapphire (Corundum (Al2O3)) — mineral

Sapphire

Corundum (Al2O3)

Yellow Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Smoky Quartz (Smoky Quartz (Silicon Dioxide, SiO2)) — mineral

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Dyed Blue Agate (Silicon Dioxide (SiO2)) — Mineral

Dyed Blue Agate

Silicon Dioxide (SiO2)

Green Moss Agate (Silicon Dioxide with inclusions (SiO2 + Mn/Fe)) — sedimentary

Green Moss Agate

Silicon Dioxide with inclusions (SiO2 + Mn/Fe)

Septarian Nodule (Dragon Stone) (Septarian concretion (composition: CaCO3 - Calcite, Aragonite, and Siderite/Limestone)) — sedimentary

Septarian Nodule (Dragon Stone)

Septarian concretion (composition: CaCO3 - Calcite, Aragonite, and Siderite/Limestone)

Charoite ((K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4 · nH2O (Hydrated silicate of potassium, calcium, and sodium)) — metamorphic

Charoite

(K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4 · nH2O (Hydrated silicate of potassium, calcium, and sodium)

Granite (Leucogranite) (Felsic Plutonic Rock (Granite)) — igneous

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Petrified Wood (Silicified wood (primarily SiO2 - Silicon Dioxide/Quartz)) — metamorphic

Petrified Wood

Silicified wood (primarily SiO2 - Silicon Dioxide/Quartz)

Sandstone (with Iron Staining) (Clastic sedimentary rock (SiO2 with Fe2O3 oxides)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (SiO2 with Fe2O3 oxides)

Moqui Marble (Shaman Stone) (Iron Oxide Concretion (composed primarily of Quartz sand with Hematite/Goethite shell)) — sedimentary

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (composed primarily of Quartz sand with Hematite/Goethite shell)

Amethyst (Amethyst (Silicon Dioxide with iron impurities), SiO2) — mineral

Amethyst

Amethyst (Silicon Dioxide with iron impurities), SiO2

Anthracite Coal (Anthracite) — metamorphic

Anthracite Coal

Anthracite

Pyrite in Shale (Iron Disulfide (FeS2)) — mineral

Pyrite in Shale

Iron Disulfide (FeS2)

Shiva Lingam (Cryptocrystalline Quartz (Jasproid/Jasper)) — sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasproid/Jasper)

Moonstone (Feldspar) (Orthoclase/Albite ((K,Na)AlSi3O8)) — mineral

Moonstone (Feldspar)

Orthoclase/Albite ((K,Na)AlSi3O8)

Sapphire (Corundum variety) (Sapphire (Al₂O₃)) — Mineral

Sapphire (Corundum variety)

Sapphire (Al₂O₃)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz Geode Cluster (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz Geode Cluster

Silicon Dioxide (SiO2)

Smoky Quartz Cluster (Smoky Quartz (Silicon Dioxide - SiO2)) — mineral

Smoky Quartz Cluster

Smoky Quartz (Silicon Dioxide - SiO2)

Raw Citrine (Citrine (Silicon Dioxide, SiO2)) — mineral

Raw Citrine

Citrine (Silicon Dioxide, SiO2)

Shiva Lingam (Cryptocrystalline Quartz (Jasproid/Sandstone) with Iron Oxide (Fe2O3)) — sedimentary

Shiva Lingam

Cryptocrystalline Quartz (Jasproid/Sandstone) with Iron Oxide (Fe2O3)

Green Quartz (including Prase or Aventurine variants) (Silicon Dioxide (SiO2) with inclusions (likely Actinolite or Chlorite)) — mineral

Green Quartz (including Prase or Aventurine variants)

Silicon Dioxide (SiO2) with inclusions (likely Actinolite or Chlorite)

Nephrite Jade (Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)) — Mineral

Nephrite Jade

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Chert (Jasper variation) (Chert (Microcrystalline Silicon Dioxide, SiO2)) — sedimentary

Chert (Jasper variation)

Chert (Microcrystalline Silicon Dioxide, SiO2)

Granite (Granitoid) — igneous

Granite

Granitoid

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Petoskey Stone (Hexagonaria percarinata) — sedimentary

Petoskey Stone

Hexagonaria percarinata

Sandstone (Pebble) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Pebble)

Arenite (primarily SiO2)

Black Limestone with Calcite Veining (Bituminous Limestone (CaCO3 with Organic Carbon inclusions)) — sedimentary

Black Limestone with Calcite Veining

Bituminous Limestone (CaCO3 with Organic Carbon inclusions)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Amethyst (Polished/Carved Crystal) (Silicon Dioxide (SiO2) with trace Iron (Fe)) — mineral

Amethyst (Polished/Carved Crystal)

Silicon Dioxide (SiO2) with trace Iron (Fe)

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Aquamarine (Aquamarine (Beryl variety); Be3Al2Si6O18) — mineral

Aquamarine

Aquamarine (Beryl variety); Be3Al2Si6O18