Sea Glass (Uranium/Vaseline Glass variant)
Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)
Category
Browse man made material (metal) specimens identified by the Rock Identifier community.
Sea Glass (Uranium/Vaseline Glass variant)
Silicon Dioxide (SiO2) with trace Uranium Oxide (U3O8)
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Granite
Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)
Pearl
Aragonite (CaCO3 with conchiolin)
Red Chert (Jasper)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
Flint (or Chert)
Cryptocrystalline Quartz (SiO2)
Desert Rose (Baryte or Gypsum Rose)
Baryte (BaSO4) or Gypsum (CaSO4·2H2O)
Quartzite (River Pebble)
Quartzite (Mainly SiO2)
Quartzite with vugs/druzy quartz
Crystalline Silicon Dioxide (SiO2)
Gold in Quartz
Hydrothermal Quartz with Native Gold (SiO2 with Au)
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Granite
Granite (a phaneritic intrusive igneous rock consisting mainly of quartz, alkali feldspar, and plagioclase)
Dyed Quartz (imitating Emerald/Green Quartz)
Silicon Dioxide (SiO2) with artificial pigment
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
Quartz
Silicon Dioxide (SiO₂)
Glazed Ceramic Tile
Fused Silicate-Clay composite
Malachite
Malachite (Copper Carbonate Hydroxide) - Cu2CO3(OH)2
Chert (Flint)
Chert (Microcrystalline Quartz, SiO2)
Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Yooperlite (Syenite clast containing fluorescent Sodalite)
Sodalite-bearing Syenite
Chert (Quartz Variety)
Chert (Silicon Dioxide, SiO2)
Slag Glass (Cullet)
Amorphous Silica / Glass residue
Blue Goldstone
Aventurine Glass
Synthetic Costume Glove (Paws)
Polyethylene terephthalate (Polyester) & Polyurethane blend
Chert (Tan/Brown variety)
Chert (Silicon Dioxide, SiO2)
Amber
Succinite (Carbon-based organic compound; approximate formula C10H16O)
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Black Sapphire
Corundum (Al2O3)
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO2)
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Botryoidal Pyrite
Iron Sulfide (FeS2)
Rose Gold (Copper-Gold Alloy)
Aurum-Cuprum Alloy (Au-Cu)
Diamond in Kimberlite
Diamond (C in Kimberlite Matrix)
Clear Quartz
Silicon Dioxide (SiO2)
Chalk
Calcium Carbonate (CaCO3)
Desert Rose (also known as Sand Rose)
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions
Quartzite
Quartzite (SiO2)
Crinoid Fossil Stem Segment
Class Crinoidea (Echinodermata)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)