Diamond (as set in a gold ring)
Carbon (C)
mineral
Category
Mineral (Synthetic Paper And Ink Polymorph)
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Diamond
Native Carbon (C)
mineral
Snowflake Obsidian
Volcanic glass containing Cristobalite (SiO2)
igneous
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
metamorphic
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Mica (Muscovite)
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
K2 Jasper (K2 Granite)
Azurite in Granite (Al2Cu3(CO3)2(OH)2 in NaAlSi3O8)
igneous
Aragonite
Aragonite (Carbonate mineral), CaCO3
mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Opalite
Man-made glass (traditionally simulated Opal)
mineral
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Biotite (Black Mica)
Biotite (K(Mg,Fe++)3AlSi3O10(OH,F)2)
mineral
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Limonite (Iron Ore)
Limonite; FeO(OH)·nH2O
mineral
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Aragonite (Star Cluster or Twinned variety)
Aragonite (Calcium Carbonate, CaCO3)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Snowflake Obsidian
Spherulitic Obsidian (primarily SiO2)
igneous
Kyanite (in Schist Matrix)
Kyanite (Al2SiO5)
metamorphic
Kyanite
Kyanite (Al2SiO5)
mineral
Garnet Schist
Almandine Garnet Schist (Fe3Al2(SiO4)3 in Schistose matrix)
metamorphic
Aragonite Star Cluster
Aragonite (Sputnik habit) - CaesarCO3
mineral
Kyanite (Blue and Green varieties)
Kyanite (Al₂SiO₅)
mineral
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Sandstone (with potential fossil inclusions)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Blue Kyanite
Kyanite (Al2SiO5)
metamorphic
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Amber
Succinite (C10H16O)
mineraloid
Cubic Zirconia (Faceted)
Zirconium dioxide (ZrO2)
mineral
Chiastolite (Andalusite)
Al2SiO5
metamorphic
Blue Kyanite in Quartz
Kyanite (Al2SiO5)
mineral
The user-provided image does not contain a rock or mineral specimen
N/A
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Oak-grain Laminate (Industrial/Decorative Furniture Finish)
Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)
not a rock (synthetic material)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Chalk (Limestone variant)
Calcium Carbonate (CaCO3)
sedimentary
Mica
Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary