Native Copper
Native Copper (Cu)
mineral
Category
Industrial Byproduct (Anthropogenic Rock)
Browse industrial byproduct (anthropogenic rock) specimens identified by the Rock Identifier community.
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Garnet in Quartz Matrix
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz (SiO2)
metamorphic
Blue Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Yellow Diamond
Diamond (Carbon, C)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Chalcedony (Common Opal or Agate variant)
Silicon Dioxide (SiO₂)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Marble
Recrystallized Calcite / Dolomite (CaCO3)
metamorphic
Chert (Red Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Cubic Zirconia (CZ)
Zirconium dioxide (ZrO2)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
igneous
Diamond (in jewelry setting)
Diamond (Native Carbon, C)
mineral
Green Fluorite (likely synthetic or heat-treated for jewelry)
Calcium Fluoride (CaF2)
mineral
Banded Agate (often called Brown Agate or Chalcedony)
Silicon Dioxide (SiO2)
mineral
Diamond (or synthetic simulant)
Cubic C (Carbon)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
White Topaz
Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2
mineral
Diamond (in a jewelry setting)
Carbon (C)
mineral
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
metamorphic
Black Diamond / Black Sapphire
Carbon (C) or Corundum (Al2O3)
mineral
Diamond
Carbon (C)
mineral
Wavellite
Wavellite (Al3(PO4)2(OH, F)3·5H2O)
mineral
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Garnet Schist
Garnetiferous Mica Schist
metamorphic
Amethyst
Silicon dioxide (SiO2)
mineral
Ruby in Matrix
Corundum (Al2O3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Angelite
Anhydrite (Calcium Sulfate, CaSO4)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Ruby (Raw Corundum)
Corundum (Aluminum Oxide with Chromium), Al2O3:Cr
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Limonite after Pyrite (Prophecy Stone)
Limonite (FeO(OH)·nH2O) replacing Pyrite (FeS2)
Mineral pseudomorph
Aquamarine
Beryl (Be3Al2Si6O18 with iron traces)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral