Likely clear quartz pebble or glassy quartz fragment
Quartz (silicon dioxide, SiO₂)
Category
Browse not a rock (man made polymer) specimens identified by the Rock Identifier community.
Likely clear quartz pebble or glassy quartz fragment
Quartz (silicon dioxide, SiO₂)
Aventurine Quartz
Silicon Dioxide (SiO2) with Fuchsite inclusions
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
Opalite
Man-made Synthetic Glass (Silicon Dioxide with metal additives)
Green Slag
Anthropogenic Silicate Glass
Silicon Carbide (Carborundum)
Silicon Carbide (SiC)
Red Sandstone or Brick Fragment
Arenite (if sandstone)
Polished labradorite sphere
Labradorite, calcic plagioclase feldspar ((Ca,Na)(Al,Si)₄O₈)
Polished labradorite pendant
Labradorite, a calcium-rich plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈)
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Hematite
Iron(III) oxide (Fe2O3)
Probable amber fragment
Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)
Man-made Ceramic / Clay Figurine
Aluminosilicate Ceramic (Processed Clay)
Bismuth
Bismuth (Bi)
Milky quartz (rough quartz fragment)
Quartz, silicon dioxide (SiO₂)
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
Opalite
Synthetic Opalised Glass
Opalite
Synthetic Silicon Dioxide (SiO2)
Slag Glass
Anthropogenic Amorphous Silicon Dioxide
Rainbow Hematite (Titanium Coated)
Iron(III) oxide (Fe2O3) with Titanium/Metal Oxide coating
Likely tumbled or cut quartz/chalcedony fragment
Silicon dioxide (SiO₂), probably microcrystalline quartz or quartz
Cobalt Glass Slug (Cullet)
Man-made Silicate Glass with Cobalt Oxide (CoO)
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
Goldstone (Brown/Gold)
Aventurine Glass (Man-made glass with Copper inclusions)
Porcelain Tile (Sandstone-look)
Man-made Ceramic (resembling Quartz-rich Sandstone)
Opalite crescent pendant
Opalite (man-made opalescent glass; not a natural mineral)
Sea Glass
Man-made vitreous material (silica-based glass)
Sea Glass
Man-made silicate glass (Amorphous silicon dioxide)
Goldstone
Aventurine Glass (Man-made glass with copper inclusions)
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂), likely milky quartz
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
Mystic Topaz
Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating
Opalite
Synthetic Glass (Hydrated Crystalline Silicon Dioxide simulation)
Polished brown jasper (likely brecciated or orbicular jasper)
Microcrystalline quartz/chalcedony, SiO₂, with iron-oxide and other mineral inclusions
Obsidian (Blue)
Volcanic Glass (SiO2)
Blue Cracked Quartz (Dyed Fire Crackle Quartz)
Silicon Dioxide (SiO2) with synthetic dye
Pink Quartz / Sea Glass
Silicon Dioxide (SiO2)
Clear quartz crystal (likely)
Quartz, silicon dioxide (SiO₂)
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
Opalite
Synthetic Glass (Simulated Moonstone/Opal)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)