Pink Tumbled Quartz (Dyed)
Silicon Dioxide (SiO2)
mineral
Category
Man Made (Synthetic Rock)
Browse man made (synthetic rock) specimens identified by the Rock Identifier community.
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Dyed Crackle Quartz (Green)
Quenching-treated Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite Concretion (Grapestone)
Iron Sulfide (FeS2) Concretion
sedimentary
Aura Quartz (Titanium/Gold coated)
Silicon Dioxide (SiO2) with metallic vapor deposition
mineral
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
industrial byproduct (anthropogenic material)
Slag Glass
SiO2 (Silicon Dioxide) with impurities
man-made glass
Blue Glass or Slag Glass
Amorphous Silica (Anthropogenic Glass)
mineral
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
sedimentary (man-made composite)
Sea Glass (White/Clear)
Amorphous Silica (Alkali-Lime-Silica Glass), SiO2 + Na2O + CaO
Anthropogenic (Man-made product subject to geological processes)
Black Obsidian
Amorphous volcanic glass (SiO2 + impurities)
igneous
Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Cubic Zirconia (as used in jewelry setting)
Zirconium dioxide (ZrO2)
mineral
Titanium Amethyst Geode
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Deposition Layer
mineral
Aura Quartz
Titanium/Titanium-Gold treated Silicon Dioxide (SiO2)
mineral
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
mineraloid / man-made glass
Blue Goldstone
Man-made glass with suspended copper, cobalt, or manganese particles
man-made glass
Clear Quartz crystals on a Matrix base (Geode fragment)
Silicon Dioxide (SiO2)
mineral
Cullet Glass (sometimes mistaken for Blue Obsidian or Slag)
Amorphous Silicon Dioxide (SiO2) with chemical additives (e.g., Cobalt for blue color)
mineraloid / industrial byproduct
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
Blue Crackle Quartz (Dyed Quarzite)
Silicon Dioxide (SiO2) with artificial dye
Metamorphic (modified)
Dyed Blue Agate (Dragon Vein Agate)
Silicon Dioxide (SiO2) with artificial cobalt/organic dyes
mineral
Diamond
Native Carbon (C)
mineral
Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating
mineral
Ferro-slag (Leland Blue/Slag Glass)
Anthropogenic Vitreous Silica (Industrial Slag)
igneous
Diamond
Carbon (C)
gemstone
Sedimentary Rock with Crafts (Pet Rock)
Sedimentary rock decorated with synthetic materials
sedimentary
Sea Glass
Man-made vitreous material (silica-based glass)
mineral
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
mineral
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
gemstone
Porcelain Tile (Sandstone-look)
Man-made Ceramic (resembling Quartz-rich Sandstone)
sedimentary (imitation)
Digital Multimeter (Synthetic Object)
Digital Multimeter (DMM)
not a rock
Carborundum
Silicon Carbide (SiC)
mineral
Cullet (Slag Glass)
Amorphous Silica (Industrial byproduct)
mineraloid
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral
Painted River Rock
Polished fluvial clast with acrylic/synthetic pigment coating
Sedimentary or Metamorphic (base substrate)
Cobalt Glass Slug (Cullet)
Man-made Silicate Glass with Cobalt Oxide (CoO)
mineraloid
Raw quartz crystal
Quartz (silicon dioxide, SiO₂), likely milky or included quartz
mineral
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Man-made material (constructed)
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
mineral
Sea Glass
Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature
mineral
Ferruginous Conglomerate (or Iron-Rich Concrete/Slag)
Clastic Sedimentary (Silicon Dioxide/Iron Oxide matrix)
sedimentary