This Appears To Be A Man Made Metallic Object, Likely Jewelry, Not A Natural Rock, Mineral, Or Geological Specimen.

Browse this appears to be a man made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen. specimens identified by the Rock Identifier community.

Amethyst

Silicon Dioxide with trace Iron (SiO2 + Fe3+)

mineral

Diamond

Diamond (pure Carbon, C)

mineral

Smoky Quartz

Silicon Dioxide (SiO2)

mineral

Sandstone

Quartz Arenite (a type of sandstone composed of more than 90% quartz)

Sedimentary Rock

Pyrite

Iron Sulfide (FeS2)

mineral

Native Copper within Host Rock

Native Copper (Cu)

Mineral

Alexandrite

Chrysoberyl (BeAl2O4 with Chromium traces)

mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral

Nuummite

Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)

metamorphic

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

mineral

Carnelian

Chalcedony (cryptocrystalline quartz), SiO2

Mineral

Pyrite

Iron Sulfide (FeS2)

mineral

Pink Sapphire

Corundum (Al2O3 with Chromium/Titanium/Iron traces)

mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

mineral

Banded Gneiss (with possible weathered sulfide or iron staining)

Gneiss, potentially with iron oxide/hydroxide staining (e.g., limonite) or weathered sulfides

Metamorphic

Quartz (Milky or Druzy Quartz)

Silicon Dioxide (SiO2)

mineral

Agate and Amethyst (Quartz variants)

Silicon Dioxide (SiO2) - Microcrystalline Quartz and Crystalline Quartz

mineral

Bumble Bee Jasper

Calcite and Volcanic Ash Mixture

sedimentary

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

mineral

Fluorite

Calcium fluoride (CaF2)

mineral

Laterite (iron-rich nodule, possibly Bauxite as a subtype)

Laterite (composed of various minerals including goethite, hematite, gibbsite, etc.)

Sedimentary

Jasper (likely Ocean Jasper or Variegated Jasper)

Silicon Dioxide (SiO2) with impurities

sedimentary

Emerald

Beryl (Be3Al2Si6O18) with trace amounts of Chromium and/or Vanadium

mineral

Quartz with Iron Staining

Silicon Dioxide (SiO2) with Ferruginous Oxides

mineral

Quartz

Silicon Dioxide (SiO2)

mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

mineral

Fossilized Coral

Scleractinia (fossil order), primarily Calcium Carbonate (CaCO3)

sedimentary

Petrified Wood

Silicified Wood (primarily SiO2)

sedimentary

Fluorite (Purple Octahedron)

Calcium Fluoride (CaF2)

Mineral

Pyrite

Iron Sulfide (FeS2)

mineral

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Mineral