N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Category
Sedimentary Like (Industrial Composite)
Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.
Quartz with Muscovite Mica
SiO2 with KAl2(AlSi3O10)(OH)2
mineral group
Iron Slag
Ferrous Slag (Industrial Byproduct)
mineraloid (anthropogenic byproduct)
Schist
Mica Schist
metamorphic
Fossilized Shark Tooth
Carcharodon (Galeocerdo sp. or Lamniform)
mineral
Botryoidal Chalcedony
Cryptocrystalline Silicon Dioxide (SiO2)
mineral
Bituminous Coal
Organic Sedimentary Rock (Carbon-based)
sedimentary
Slag (Industrial Glass Slag)
Amorphous Silicate Glass (often containing Al, Ca, Mg, and Ti oxides)
Mineraloid (Industrial byproduct)
Quartz (vein quartz)
SiO2 (Silicon Dioxide)
Mineral
Blue Slag Glass
Amorphous Silica (Industrial byproduct)
Antropogenic (Man-made glass byproduct)
Garnet in Matrix (Schist or Quartz)
Almandine Garnet, Fe3Al2(SiO4)3
metamorphic
Painted River Pebble (likely Basalt or Greywacke)
Aphanitic Lithic Clast with Anthropogenic Pigment coating
Sedimentary or Igneous
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Pegmatite (Granitic) with Tourmaline
Granitic Pegmatite (containing Schorl and Quartz)
igneous
Native Copper (in coinage alloy)
Copper (Cu)
mineral
Iron Ore (Hematite/Goethite)
Ironstone (Fe2O3 / FeO(OH))
sedimentary
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Pegmatite
Granitic Pegmatite
igneous
Chert (varietal Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Red Jasper
Silicon Dioxide (SiO2) - Opaque microcrystalline quartz
sedimentary
Jasper (Red Jasper)
Silicon Dioxide (SiO₂)
sedimentary
Ironstone with Limonite/Goethite coating
Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O)
sedimentary
Pebble (likely Quartz or Chert)
SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.
Sedimentary Rock
Ruby, Emerald, and Sapphire (Corundum and Beryl)
Corundum (Al2O3) and Beryl (Be3Al2Si6O18)
mineral
Peridot (Olivine)
Olivine, (Mg, Fe)2SiO4
mineral
![Turquoise (Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]) — mineral](https://media.rockidentification.com/054f3fa7-f73a-456a-b566-38d3b6295e69-thumbnail.jpg)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
mineral
Quartz Druzy on Matrix (likely Agate or Jasper)
Silicon Dioxide (SiO2) with various mineral inclusions
mineral
Fluorite, Sodalite, and Rose Quartz collection
Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)
mineral
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Granitoid (Pegmatitic Granite)
Granitoid with dominant Potassium Feldspar and Quartz
igneous
Pegmatite
Granitic Pegmatite
igneous
Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
mineral
Garnet
Garnet group (X3Y2(SiO4)3)
mineral
Coal (most likely Bituminous or Anthracite)
Coal (organic sedimentary rock)
Sedimentary
Concrete rubble
Anthropogenic conglomerate
sedimentary
Limestone with Iron Inclusions
Calcium Carbonate (CaCO3) with Hematite/Limonite
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Antropogenic rock (Man-made)
Vesicular Basalt (Lava Rock)
Basalt
igneous
Diamond (or Cubic Zirconia simulant)
Carbon (C) or Zirconium Dioxide (ZrO2)
mineral