Rock Identifier

Category

Man Made Material (Jewelry, Metal Alloy)

Browse man made material (jewelry, metal alloy) specimens identified by the Rock Identifier community.

Pink Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Pink Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Chert (or Flint) (Chert (a cryptocrystalline variety of quartz, SiO2)) — sedimentary

Chert (or Flint)

Chert (a cryptocrystalline variety of quartz, SiO2)

Diamond (in a cluster setting) (Crystallized Carbon (C)) — mineral

Diamond (in a cluster setting)

Crystallized Carbon (C)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

Rough Diamond (Native Carbon (C)) — mineral

Rough Diamond

Native Carbon (C)

Diamond (Diamond (pure native carbon, C)) — mineral

Diamond

Diamond (pure native carbon, C)

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Porcelain (Stoneware Ceramic) (Mullite / Silica-glass composite (Al6Si2O13)) — metamorphic (man-made)

Porcelain (Stoneware Ceramic)

Mullite / Silica-glass composite (Al6Si2O13)

metamorphic (man-made)

Granite (Granite (felsic intrusive igneous rock)) — igneous

Granite

Granite (felsic intrusive igneous rock)

Lepidolite in Quartz (Lithium-bearing Ore) (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)) — igneous/mineral

Lepidolite in Quartz (Lithium-bearing Ore)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)

igneous/mineral

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Iron Meteorite (Fragment) (Siderite (Iron-Nickel alloy: Kamacite and Taenite)) — igneous

Iron Meteorite (Fragment)

Siderite (Iron-Nickel alloy: Kamacite and Taenite)

Crushed Limestone (Calcium Carbonate (CaCO3)) — Sedimentary

Crushed Limestone

Calcium Carbonate (CaCO3)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Pyrope Garnet (Bohemian Garnets) (Pyrope (from the group Mg3Al2(SiO4)3)) — mineral

Pyrope Garnet (Bohemian Garnets)

Pyrope (from the group Mg3Al2(SiO4)3)

Blue Lace Agate (Chalcedony (SiO2) with trace inclusions) — mineral

Blue Lace Agate

Chalcedony (SiO2) with trace inclusions

Pallasite Meteorite (Sliced and Polished) (Pallasite (Iron-Nickel Matrix with Olivine crystals)) — mineral

Pallasite Meteorite (Sliced and Polished)

Pallasite (Iron-Nickel Matrix with Olivine crystals)

Diamond (as featured in jewelry) (Diamond (C - pure carbon)) — mineral

Diamond (as featured in jewelry)

Diamond (C - pure carbon)

Olivine in Basalt matrix (Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)) — igneous

Olivine in Basalt matrix

Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)

Beryl (Emerald Variety) (Beryllium Aluminum Silicate (Be3Al2(SiO3)6)) — mineral

Beryl (Emerald Variety)

Beryllium Aluminum Silicate (Be3Al2(SiO3)6)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon dioxide (SiO₂)) — Mineral

Quartz

Silicon dioxide (SiO₂)

Rough Aquamarine (Beryl (Be₃Al₂Si₆O‑₁₈)) — mineral

Rough Aquamarine

Beryl (Be₃Al₂Si₆O‑₁₈)

Milky Quartz (Silicon Dioxide (SiO2)) — Mineral

Milky Quartz

Silicon Dioxide (SiO2)

Common Marble (Calcium Carbonate (CaCO3)) — metamorphic

Common Marble

Calcium Carbonate (CaCO3)

Peacock Ore (Chalcopyrite) (Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Chalcopyrite)

Chalcopyrite (CuFeS2)

Rough Sapphire (Corundum) (Corundum (Al2O3)) — mineral

Rough Sapphire (Corundum)

Corundum (Al2O3)

Mixed Gemstone Beaded Jewelry (Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)) — Mineral

Mixed Gemstone Beaded Jewelry

Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)

Coquina (Coquina (Bioclastic Limestone)) — sedimentary

Coquina

Coquina (Bioclastic Limestone)

Blue Sea Glass (Amorphous Silica (Anthropogenic glass)) — not a rock (man-made origin)

Blue Sea Glass

Amorphous Silica (Anthropogenic glass)

not a rock (man-made origin)

Gold (Native Gold (Au)) — mineral

Gold

Native Gold (Au)

Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Lavender Quartz (appearing as beads) and Druzy Quartz (Silicon Dioxide (SiO2)) — mineral

Lavender Quartz (appearing as beads) and Druzy Quartz

Silicon Dioxide (SiO2)

Sea Glass (Cobalt Blue) (Amorphous Silica (Glass with Cobalt additives)) — Anthropogenic specimen (man-made)

Sea Glass (Cobalt Blue)

Amorphous Silica (Glass with Cobalt additives)

Anthropogenic specimen (man-made)

Pearl (Imitation or Cultured) (Calcium Carbonate (Aragonite/Calcite) - CaCO3) — Mineraloid (Organic)

Pearl (Imitation or Cultured)

Calcium Carbonate (Aragonite/Calcite) - CaCO3

Mineraloid (Organic)

Native Copper (Penny specimen) (Native Copper (Cu)) — mineral

Native Copper (Penny specimen)

Native Copper (Cu)

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate) (N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)) — Organic (if resin) or Synthetic (if glass); simulating Sedimentary or Metamorphic (for natural stones)

Red Swirl Beads (Likely Resin or Glass, simulating Red Jasper or Agate)

N/A (for the beads as pictured); Red Jasper: SiO2 (Chert variety); Red Agate: SiO2 (Chalcedony variety)

Organic (if resin) or Synthetic (if glass); simulating Sedimentary or Metamorphic (for natural stones)

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Obsidian (Volcanic Glass (70% or more SiO2)) — igneous

Obsidian

Volcanic Glass (70% or more SiO2)