Rock Identifier

Category

Mineral, Jewelry

Browse mineral, jewelry specimens identified by the Rock Identifier community.

Learn about Mineral, Jewelry in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Dolomite

Carnelian (Chalcedony (SiO2)) — mineral

Carnelian

Chalcedony (SiO2)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Tumbled brown quartz (likely smoky quartz) (Quartz, silicon dioxide (SiO₂); brown coloration may be smoky quartz or iron-stained quartz) — mineral

Tumbled brown quartz (likely smoky quartz)

Quartz, silicon dioxide (SiO₂); brown coloration may be smoky quartz or iron-stained quartz

Native Gold (Gold (Au)) — mineral

Native Gold

Gold (Au)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Eudialyte with Syenite (Eudialyte: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2) — igneous

Eudialyte with Syenite

Eudialyte: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2

Lapis Lazuli (Lapis lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)) — metamorphic

Lapis Lazuli

Lapis lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)

Diamond jewelry (Diamond (crystalline carbon, C)) — gemstone

Diamond jewelry

Diamond (crystalline carbon, C)

Beaded bracelet with likely quartz or glass beads (Uncertain; the pale beads may be quartz (SiO₂), but the image does not show diagnostic features) — mineral

Beaded bracelet with likely quartz or glass beads

Uncertain; the pale beads may be quartz (SiO₂), but the image does not show diagnostic features

Fossilized tooth, likely mammalian molar (Silicified or mineral-replaced mammalian tooth; exact taxon cannot be determined from the image) — fossil

Fossilized tooth, likely mammalian molar

Silicified or mineral-replaced mammalian tooth; exact taxon cannot be determined from the image

Pearl (Cultured Freshwater) (Calcium Carbonate (Aragonite) - CaCO3) — mineral

Pearl (Cultured Freshwater)

Calcium Carbonate (Aragonite) - CaCO3

Diamond (C (Carbon)) — mineral

Diamond

C (Carbon)

Small rounded light-colored mineral pebble (Indeterminate; possibly quartz, feldspar, or calcite) — mineral

Small rounded light-colored mineral pebble

Indeterminate; possibly quartz, feldspar, or calcite

Tumbled Amethyst and Smoky Quartz (Silicon Dioxide (SiO2) with impurities) — mineral

Tumbled Amethyst and Smoky Quartz

Silicon Dioxide (SiO2) with impurities

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Lapis Lazuli (Lapis Lazuli (A complex rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)) — metamorphic

Lapis Lazuli

Lapis Lazuli (A complex rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Quartz Mineral (Silicon Dioxide (SiO2)) — mineral

Quartz Mineral

Silicon Dioxide (SiO2)

Quartz (specifically Clear and Rose Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Clear and Rose Quartz)

Silicon Dioxide (SiO2)

Chalcedony (Tumbled) (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony (Tumbled)

Cryptocrystalline Quartz (SiO2)

Quartz with Iron Oxide Inclusions (Silicon dioxide with limonite/hematite (SiO2)) — mineral

Quartz with Iron Oxide Inclusions

Silicon dioxide with limonite/hematite (SiO2)

Fossilized Shark Tooth (Carcharodon (Galeocerdo sp. or Lamniform)) — mineral

Fossilized Shark Tooth

Carcharodon (Galeocerdo sp. or Lamniform)

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Blue Howlite (Dyed) (Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)) — mineral

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Polished Jasper (Cryptocrystalline quartz, SiO2) — mineral

Polished Jasper

Cryptocrystalline quartz, SiO2

Green Tourmaline (Verdelite) / Actinolite (Tourmaline group: Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4 / Actinolite: Ca2(Mg,Fe)5Si8O22(OH)2) — mineral

Green Tourmaline (Verdelite) / Actinolite

Tourmaline group: Na(Mg,Fe,Li,Al,Mn)3Al6(BO3)3Si6O18(OH)4 / Actinolite: Ca2(Mg,Fe)5Si8O22(OH)2

Amethyst cabochon jewelry (Amethyst, purple variety of quartz (SiO₂)) — gemstone

Amethyst cabochon jewelry

Amethyst, purple variety of quartz (SiO₂)

Cat's Eye Chrysoberyl (Chrysoberyl (BeAl2O4)) — mineral

Cat's Eye Chrysoberyl

Chrysoberyl (BeAl2O4)

Purple Chalcedony (likely dyed Agate) (Silicon Dioxide (SiO2)) — mineral

Purple Chalcedony (likely dyed Agate)

Silicon Dioxide (SiO2)

Snowflake Obsidian (Volcanic Glass (SiO2 rich with Cristobalite inclusions)) — igneous

Snowflake Obsidian

Volcanic Glass (SiO2 rich with Cristobalite inclusions)

Amethyst crystal (Quartz (SiO₂), purple variety colored by trace iron and irradiation) — mineral

Amethyst crystal

Quartz (SiO₂), purple variety colored by trace iron and irradiation

Tumbled amethyst (Quartz (SiO₂), purple variety colored by trace iron and natural irradiation) — mineral

Tumbled amethyst

Quartz (SiO₂), purple variety colored by trace iron and natural irradiation

Tumbled amethyst (Amethyst, purple variety of quartz (SiO₂)) — gemstone

Tumbled amethyst

Amethyst, purple variety of quartz (SiO₂)

Tumbled amethyst (Quartz (SiO₂), purple variety known as amethyst) — mineral

Tumbled amethyst

Quartz (SiO₂), purple variety known as amethyst

Tektite (Tektite (Meteorite impact glass)) — meteorite

Tektite

Tektite (Meteorite impact glass)

Nugget of Native Silver (Native Silver (Ag)) — mineral

Nugget of Native Silver

Native Silver (Ag)

Sunstone (Feldspar) ((Ca,Na)((Al,Si)2Si2O8) with inclusions of Hematite or Goethite) — mineral

Sunstone (Feldspar)

(Ca,Na)((Al,Si)2Si2O8) with inclusions of Hematite or Goethite

Emerald in Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Druzy Quartz on Matrix (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Matrix

Silicon Dioxide (SiO2)

Amazonite (Microcline (K(AlSi3O8))) — mineral

Amazonite

Microcline (K(AlSi3O8))

Quartz (Citrine/Milky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine/Milky variety)

Silicon Dioxide (SiO2)

Peach Moonstone (Potassium Aluminum Silicate (KAlSi3O8) with inclusions) — mineral

Peach Moonstone

Potassium Aluminum Silicate (KAlSi3O8) with inclusions