Green Slag Glass
Amorphous Silicon Dioxide (with metallic impurities)
Igneous (Anthropogenic)
Category
Industrial By Product
Browse industrial by product specimens identified by the Rock Identifier community.
Slag Glass (Cullet)
Amorphous Silica (man-made), primarily SiO2 with trace metal oxides
Mineraloid / Synthetic Glass
Epidote
Epidote; Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
mineral
Pumice
Pumicite / Vesicular Rhyolite
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Pumice
Pumice (Vesicular Felsic Glass)
igneous
Pumice
Pumicite
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Byproduct)
mineraloid
Epidote
Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Mineral
Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Mineral-like byproduct
Quartzite
Quartzite (SiO2)
metamorphic
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
metamorphic
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Man-made object (Simulant)
Native Copper (in coinage alloy)
Copper (Cu)
mineral
Pumice (specifically a water-worn, weathered variety)
Vesicular volcanic glass
igneous
Black Kyanite
Kyanite (Al2SiO5) with carbonaceous inclusions
mineral
Pumice
Pumice (Amorphous volcanic glass)
igneous
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Magnesite or Howlite (dyed or naturally patterned)
Magnesium carbonate (MgCO3) or Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Pumice and Scoria
Vesicular Volcanic Ejecta (Rhyolite/Andesite/Basalt)
igneous
Titanium Coated Kyanite (Aura Kyanite)
Aluminosilicate (Al2SiO5) with a Titanium-Niobium vacuum-deposited coating
metamorphic
Iron Slag
Iron Slag (Industrial Vitreous Material)
Mineral/By-product
Quartzite
Quartzite (primarily SiO2)
metamorphic
Shale or Siltstone
Sedimentary Clastic Rock (Variable mineral composition including quartz and clay minerals)
sedimentary
![Sodium Polyacrylate (Superabsorbent Polymer) (Sodium Polyacrylate [-CH2-CH(COONa)-]n) — mineral (synthetic)](https://media.rockidentification.com/826c0c25-9fc0-4529-9425-5fa125f2a82f-thumbnail.jpg)
Sodium Polyacrylate (Superabsorbent Polymer)
Sodium Polyacrylate [-CH2-CH(COONa)-]n
mineral (synthetic)
Quartzite
Quartzite (SiO2)
metamorphic
Pumice
Pumice (a vesicular volcanic glass)
igneous
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Blue Aragonite
Aragonite (Calcium Carbonate, CaCO3)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace impurities of Titanium, Manganese, or Iron
mineral
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Ferrous Slag (Iron Smelting By-product)
Fused Siliceous Slag
Anthropogenic Material (Man-made Rock)
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Kyanite (within Quartz)
Kyanite (Al2SiO5) in crystalline Quartz base (SiO2)
metamorphic
Kyanite (in Schist Matrix)
Kyanite (Al2SiO5)
metamorphic
Kyanite (Green and Blue varieties)
Kyanite (Al2SiO5)
mineral
Specular Hematite with Quartz and Limonite
Hematite (Fe2O3) with Quartz (SiO2) and Limonite (FeO(OH)·nH2O)
Mineral
Hematite
Hematite, Iron(III) oxide (Fe2O3)
mineral
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Anthropogenic / Non-mineral