Sodalite beads
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with minor lazurite/pyrite or calcite inclusions
mineral
Category
Man Made Object (Metal Alloy)
Browse man made object (metal alloy) specimens identified by the Rock Identifier community.
Learn about Man Made Object (Metal Alloy) in the encyclopedia
View all →
Vanadinite
Lead Chlorovanadate - Pb5(VO4)3Cl
mineral
Iron Meteorite
Iron-Nickel Alloy (Kamacite and Taenite)
mineral
Fluorite
Calcium Fluoride (CaF2)
Mineral
Coquina
Bioclastic Limestone
sedimentary
Gold Nugget
Native Gold (Au)
mineral
Black Jasper
Black Jasper (Silicate mineral - SiO2)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Silicon
Silicon (Si)
mineral
Iron Meteorite
Siderite (meteoritic iron, Fe-Ni alloy)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Native copper nugget
Native copper (Cu)
mineral
Granodiorite
Granodiorite
Igneous
Coal (Anthracite / Bituminous)
Organic Sedimentary Rock (Carbon-based)
sedimentary
Calligraphy Stone
Mariam Jasper (Fossiliferous Limestone composed of Hematite and Shell remains)
sedimentary
Silver (Native Element / Alloy)
Silver (Ag)
mineral
Banded Chert / Banded Jasper (likely a variety of Chert/Chalcedony)
Chert (microcrystalline quartz)
Metamorphic Rock
Pink quartz crystal, possibly rose quartz
Quartz (silicon dioxide, SiO₂), likely pink quartz/rose quartz
mineral
Granite
Intrusive Igneous Rock
igneous
Tumbled blue-green stone, likely chrysocolla or dyed chalcedony
Probable chrysocolla (hydrated copper aluminosilicate; variable composition), though appearance could also represent dyed chalcedony
mineral
Gold in Quartz Matrix
Native Gold (Au) with Quartz (SiO2)
mineral
Tumbled green aventurine (probable)
Quartzite dominated by quartz (SiO₂), with green mica/fuchsite or chlorite inclusions
mineral
Gold Nugget
Native Gold (Au)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Jasper (likely a variety of Brecciated Jasper or a patterned variety)
Silicon dioxide (SiO2)
Mineral
Iron Meteorite
Iron-Nickel Alloy (Kamacite and Taenite)
meteorite
Polished banded agate (likely chalcedony)
Microcrystalline quartz/chalcedony, SiO₂, with possible iron-oxide inclusions
gemstone
Gneiss (likely)
Gneiss
Metamorphic
Chert / Flint
Chert (varieties include Flint)
Sedimentary
Polished banded agate (likely Botswana agate)
Microcrystalline quartz, SiO₂ (chalcedony with iron-oxide and other mineral bands)
mineral
Iron meteorite fragment (probable)
Fe–Ni metallic meteorite, commonly octahedrite (kamacite–taenite)
meteorite
Gold Nugget
Native Gold (Au)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Silver-bearing galena ore
Galena (PbS), likely in a quartz/carbonate-rich matrix with possible sulfide minerals
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Gneiss
Gneiss (a rock type, not a specific mineral with a formula)
Metamorphic Rock
Arsenopyrite
Arsenopyrite (FeAsS)
mineral
Green cabochon gemstone pendant
Indeterminate; likely dyed green turquoise, chrysoprase, or opaque beryl set with blue/clear accent stones
gemstone
Likely galena-bearing ore
Galena (lead sulfide, PbS), possibly with quartz or calcite gangue
mineral
Polished ocean jasper or orbicular chalcedony
Microcrystalline quartz (SiO₂), likely chalcedony with feldspar or other mineral inclusions
mineral
Asphalt aggregate (crushed stone in bitumen)
Artificial composite; predominantly crushed granite, basalt, limestone, and/or recycled aggregate bound by bitumen
sedimentary
Slag
Ferrous slag (by-product of iron smelting)
Mineraloid / Anthropogenic