Undetermined Due to Blur (Possible Flesh-Tone Mineral)
Unknown (Insufficient Visual Clarity)
Category
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Undetermined Due to Blur (Possible Flesh-Tone Mineral)
Unknown (Insufficient Visual Clarity)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with iron oxide impurities
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Quartzite
Quartzite (primarily composed of SiO O₂)
Chert (Nodule)
Chert (Alpha-Quartz, SiO2)
Map Jasper (Grey Picasso Jasper)
Silicon Dioxide (SiO2) with impurities
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Concrete Fragment
Hardened Portland Cement Composite
Agate (Banded Chalcedony)
Agate (Silicon Dioxide, SiO2)
Mica Schist
Schist (Crystalline metamorphic rock)
Ironstone Concretion (likely)
Goethite/Hematite/Limonite cemented sediment
Tiger's Eye
Titanium-containing Quartz (Silica: SiO2)
Slag Glass
Vitreous Silicate Residue
Greenschist (Greenstone)
Chlorite schist (primarily Chlorite-Epidote-Actinolite-Albite)
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Opal
Hydrous silicon dioxide (SiO2·nH2O)
Lapis Lazuli
Lapis Lazuli (Rock composed primarily of Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
Sandstone Pebble (Quartzite-rich)
Clastic Terrigenous Sedimentary Rock (SiO2 dominant)
Fuchsite
Chrome-bearing Muscovite [K(Al,Cr)2(AlSi3O10)(OH)2]
Synthetic Sapphire and Ion-X Glass
Single-crystal Alumina (Al2O3) and Ion-strengthened Aluminosilicate Glass
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Green Adventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Copper Ore (with Azurite and Malachite)
Cuprite, Azurite (Cu3(CO3)2(OH)2), Malachite (Cu2(CO3)(OH)2)
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Gold Ore
Gold-bearing Quartz (Native Gold, Au)
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Quartz (Float/Abraded)
Quartz (SiO₂)
Coarse-grained Granite
Granitoid (KAlSi3O8 + SiO2 + NaAlSi3O8)
Banded Gneiss
Gneiss
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Quartz Pebble
Silicon Dioxide (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of Iron Oxide)
Quartz with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Quartz
Quartz (SiO2 - Silicon Dioxide)