Rock Identifier

Category

Mineral (Native Element)

Browse mineral (native element) specimens identified by the Rock Identifier community.

Learn about Mineral (Native Element) in the encyclopedia

Sulfur

Carbonatite

Euxenite

Amethyst (Quartz (Silicon Dioxide with Iron impurities), SiO2) — mineral

Amethyst

Quartz (Silicon Dioxide with Iron impurities), SiO2

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Amethyst (Silicon Dioxide (SiO2) with Iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Crazy Lace Agate (Agate (Cryptocrystalline Quartz), SiO2) — Mineral

Crazy Lace Agate

Agate (Cryptocrystalline Quartz), SiO2

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Pearl (Calcium Carbonate (CaCO3) - mainly Aragonite and Calcite) — mineral

Pearl

Calcium Carbonate (CaCO3) - mainly Aragonite and Calcite

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Serpentinite (Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)) — metamorphic

Serpentinite

Serpentinite (complex silicate minerals including lizardite, chrysotile, and antigorite)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Gold Ore (Auriferous Quartz and Sulfide Mineralization in Host Rock) — igneous

Gold Ore

Auriferous Quartz and Sulfide Mineralization in Host Rock

Stainless Steel (Polished) (Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)) — Mineral equivalent / Metal Alloy

Stainless Steel (Polished)

Ferrous Alloy containing Iron (Fe), Chromium (Cr), and Carbon (C)

Mineral equivalent / Metal Alloy

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

Pegmatitic granite (Granite, quartz–feldspar–mica assemblage) — igneous

Pegmatitic granite

Granite, quartz–feldspar–mica assemblage

Granitic Pegmatite (Granitic Pegmatite (principally Quartz, Potassium Feldspar, and Mica)) — igneous

Granitic Pegmatite

Granitic Pegmatite (principally Quartz, Potassium Feldspar, and Mica)

Sandstone (with Rock Art) (Sandstone (Clastic Sedimentary Rock)) — sedimentary

Sandstone (with Rock Art)

Sandstone (Clastic Sedimentary Rock)

Blue Quartz (Blue Aventurine) (Silicon Dioxide with inclusions (SiO2)) — mineral

Blue Quartz (Blue Aventurine)

Silicon Dioxide with inclusions (SiO2)

Amethyst Geode Fragment (Amethyst (Silicon Dioxide, SiO2) with Quartz matrix) — mineral

Amethyst Geode Fragment

Amethyst (Silicon Dioxide, SiO2) with Quartz matrix

Chalcedony on Matrix (Botryoidal Agate) (Silicon Dioxide (SiO2)) — mineral

Chalcedony on Matrix (Botryoidal Agate)

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)

Iridium sand or Osmium-Iridium nugget (Iridosmine / Osmiridium (Platinoid grouping)) — mineral

Iridium sand or Osmium-Iridium nugget

Iridosmine / Osmiridium (Platinoid grouping)

Petrified Wood (Silicified Wood (primarily Silicon Dioxide, SiO2)) — mineral

Petrified Wood

Silicified Wood (primarily Silicon Dioxide, SiO2)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Orange Sapphire (Corundum (Al2O3 with trace elements)) — gemstone

Orange Sapphire

Corundum (Al2O3 with trace elements)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Tumbled pink quartz (likely rose quartz) (Quartz, silicon dioxide (SiO₂), pink variety commonly called rose quartz) — mineral

Tumbled pink quartz (likely rose quartz)

Quartz, silicon dioxide (SiO₂), pink variety commonly called rose quartz

Amethyst (SiO2 (Silicon Dioxide with Iron impurities)) — mineral

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Amethyst (Silicon Dioxide (SiO2) with trace Iron (Fe3+)) — mineral

Amethyst

Silicon Dioxide (SiO2) with trace Iron (Fe3+)

Aquamarine (Beryl (Be3Al2Si6O18) with trace Iron (Fe2+)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18) with trace Iron (Fe2+)

Amethyst (Quartz (Silicon Dioxide) SiO2 with iron impurities) — mineral

Amethyst

Quartz (Silicon Dioxide) SiO2 with iron impurities

Amethyst (Amethyst (Silicon Dioxide - SiO2 with iron impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2 with iron impurities)

Parti Sapphire (Corundum (Al2O3)) — mineral

Parti Sapphire

Corundum (Al2O3)

Amethyst (Silicon dioxide / Violet Quartz (SiO2)) — mineral

Amethyst

Silicon dioxide / Violet Quartz (SiO2)

Amethyst (Tumbled/Water-worn) (Silicon Dioxide (SiO2)) — mineral

Amethyst (Tumbled/Water-worn)

Silicon Dioxide (SiO2)

Amethyst (SiO2 (Silicon Dioxide) - Purple variety of Quartz) — mineral

Amethyst

SiO2 (Silicon Dioxide) - Purple variety of Quartz

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Silicon Dioxide (SiO2 with iron impurities)) — mineral

Amethyst

Silicon Dioxide (SiO2 with iron impurities)

Small metallic meteorite-like specimen (Unclassified iron-rich meteorite candidate; possibly an ordinary chondrite or terrestrial slag) — meteorite

Small metallic meteorite-like specimen

Unclassified iron-rich meteorite candidate; possibly an ordinary chondrite or terrestrial slag

Blue Quartz (Blue Aventurine) (Silicon Dioxide (SiO2) with inclusions of Dumortierite or Crocidolite) — metamorphic

Blue Quartz (Blue Aventurine)

Silicon Dioxide (SiO2) with inclusions of Dumortierite or Crocidolite