Yellow Sapphire (Raw)
Corundum (Al2O3)
mineral
Category
Industrial Byproduct (Often Confused With Igneous Rocks Or Meteorites)
Browse industrial byproduct (often confused with igneous rocks or meteorites) specimens identified by the Rock Identifier community.
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Serpentine
Antigorite / Lizardite / Chrysotile mix; (Mg, Fe)3Si2O5(OH)4
metamorphic
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Rough Sapphire
Corundum (Al2O3)
mineral
Amazonite
K(AlSi3O8) - Lead-bearing Microcline
mineral
Brown Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite
Metamorphosed Quartz Sandstone
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Ruby / Pink Sapphire
Corundum (Al2O3 with Chromium impurities)
gemstone
Pyrite
Iron Sulfide (FeS2)
mineral
Chondrite Meteorite
Stony Meteorite (Chondrite)
igneous
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Beryl (likely Pink/Morganite variety)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Gold
Gold (Native Element); Au
mineral
Chondrite Meteorite
Ordinary Chondrite (OC)
Mineral (Extraterrestrial)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2 equivalent)
metamorphic
Orange Quartzite
Quartzite (primarily SiO2 with Hematite impurities)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Epidote
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Opalite
Synthetic Opalite (Man-made glass)
mineral
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
mineral
Olivine
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
mineral
Scoria
Vesicular Basaltic Glass (comprised primarily of volcanic glass/silica with plagioclase, pyroxene, and olivine crystals)
igneous
Scoria
Vesicular Basaltic Glass
igneous
Chalcopyrite
Chalcopyrite (CuFeS2)
mineral
Ruby (Raw Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
mineral
Scoria (Lava Rock)
Scoria (highly vesicular volcanic rock)
igneous
Basalt Scoria
Vesicular Basalt
igneous
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Ironstone Concretion
Siderite or Goethite Concretion
sedimentary
Corundum (Ruby Variety)
Corundum (Al2O3)
mineral
Magnetite (or Magnetic Iron Ore)
Magnetite (Fe3O4)
mineral
Limonite Concretion
Goethite-Limonite (FeO(OH)·nH2O)
sedimentary