Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Category
Manufactured Glass
Browse manufactured glass specimens identified by the Rock Identifier community.
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Tumbled goldstone-like quartz pebble
Likely iron-stained quartz or jasper; exact identification requires testing
mineral
Colorless faceted gemstone (likely cubic zirconia)
Cubic zirconia, zirconium dioxide (ZrO₂); possibly synthetic quartz or glass imitation
gemstone
Obsidian
Volcanic glass (SiO2-rich amorphous silicate)
igneous
Asphalt Pavement (with aggregate)
Asphalt concrete
man-made composite
Textile (Upholstery Fabric)
Woven Polyethylene/Polyester or Cotton Blend
Synthetic or Natural Fiber
Goldstone (Brown/Gold variety)
Aventurine Glass (SiO2 with Copper inclusions)
Synthetic/Man-made glass (often mistaken for a mineral)
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable
gemstone
Strawberry Quartz (or Rose Quartz / Cherry Quartz)
Silicon Dioxide (SiO2) with Lepidocrocite, Hematite, or Goethite inclusions
mineral
Blue Obsidian (Cullet Glass)
Silicon Dioxide (Amorphous Glass)
mineral
Man-made Polished Porcelain Tile (Artificial Geologic Lookalike)
Fused Silicate Ceramic with Alumina (Synthetic Kaolinite derivative)
Synthetic (Ceramic)
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond
gemstone
Asphalt Chunk
Asphalt concrete
man-made composite
Note on Image Identification: Textile
N/A (Anthropogenic material)
not a rock
Small brown-gray mineral fragment
Indeterminate; possibly weathered quartz-, feldspar-, or iron-oxide-bearing rock
mineral
Quartzite
Metamorphic Quartzite (SiO2)
metamorphic
Blue quartzite or blue aventurine glass-like aggregate
Quartzite, predominantly SiO₂ (identification uncertain from image)
metamorphic
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Asphalt concrete
Anthropogenic conglomerate
sedimentary
Synthetic Convention Badge (Plastic/PVC)
Polyvinyl Chloride (PVC) / Polycarbonate
mineraloid (synthetic)
Native Gold
Gold (Au)
mineral
Asphalt
Asphalt concrete
sedimentary
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Cullet Glass (Industrial Slag Glass)
Amorphous Silica (SiO2) with metallic oxide impurities
Man-made byproduct (often mistaken for Obsidian or Emerald)
Cullet Glass / Slag Glass
Amorphous silica glass
man-made glass / industrial byproduct
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
This appears to be a man-made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen.
Diamond Plate (Steel)
Alloyed Carbon Steel or Aluminum with 'Durbar' pattern
not a rock (Man-made industrial metal)
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (SiO2) with metallic oxide impurities
mineraloid
Blue chalcedony (likely dyed or assembled cabochon)
Microcrystalline quartz, SiO₂ (chalcedony)
gemstone
Dark vesicular volcanic rock, likely basaltic scoria
Scoria (vesicular basalt; composition commonly plagioclase, pyroxene, and iron-rich glass)
igneous
Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Man-made Synthetic Material (Not a rock or mineral)
Polyester (Polyethylene terephthalate) / Faux Fur
Synthetic / Textile
Cobalt Glass Slug (Cullet)
Man-made Silicate Glass with Cobalt Oxide (CoO)
mineraloid
Engineer Quartz/Quartzite
SiO2 (Silicon Dioxide with binders)
Sedimentary or metamorphic-derived
Oak-grain Laminate (Industrial/Decorative Furniture Finish)
Melamine Resin-impregnated Decorative Paper on Particleboard (Cellulose/Thermosetting Plastic)
not a rock (synthetic material)
Colorless faceted gemstone (likely cubic zirconia)
Cubic zirconia, ZrO₂ (synthetic zirconium dioxide); possibly synthetic glass or lab-grown diamond
gemstone
Amber (Simulated/Faturan Style)
Resin mix (Likely Phenolic/Celluloid if synthetic, Succinite if natural)
Organic Gemstone (not a mineral)
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Build-A-Bear Plush (Non-Geological)
Polyester fibers (C10H8O4)n and Synthetic Polymers
Anthropogenic / Non-mineral
Wood Paneling
Engineered Wood / Plywood Paneling
not a rock
Green Slag Glass
Cullet (Amorphous Silicon Dioxide with impurities)
Man-made rock-like material