Multicolored beryl gemstone bracelet
Beryl, Be₃Al₂Si₆O₁₈; likely mixed aquamarine, morganite, heliodor, and green beryl beads
Category
Browse mixed specimens identified by the Rock Identifier community.
Multicolored beryl gemstone bracelet
Beryl, Be₃Al₂Si₆O₁₈; likely mixed aquamarine, morganite, heliodor, and green beryl beads
Tumbled blue sodalite beads
Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂, likely with white albite or calcite veining
Tumbled green stones, likely green aventurine or serpentine
Quartzite with fuchsite inclusions (green aventurine), or serpentine-group minerals; exact identification requires testing
Milky quartz rough chips
Quartz (silicon dioxide, SiO₂)
Beaded gemstone jewelry (likely amethyst, lapis lazuli, and pearl or glass imitation)
Mixed mineral beads; possible quartz (SiO₂) and lazurite-bearing lapis lazuli
Beaded gemstone bracelet, likely amethyst and mixed polished stones
Amethyst: quartz (SiO₂); other beads appear to be assorted quartz/chalcedony or jasper
Goethite–limonite ironstone (iron-rich laterite)
Hydrated iron oxides, chiefly goethite FeO(OH) and limonite (variable mixture)
Purple quartz fragments, likely amethyst
Amethyst (quartz, SiO₂)
Pink Granite
Felsic Plutonic Rock (Granite)
Weathered granite pebble
Granite, predominantly quartz–feldspar–mica aggregate
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions (SiO2 + Fe2O3)
Peacock Ore
Bornite (Cu5FeS4)
Copper-bearing oxidized rock
Likely malachite–chrysocolla with limonite/goethite in a weathered host rock; exact identification requires testing
Botryoidal hematite (ironstone)
Hematite, Fe₂O₃; likely a botryoidal or massive iron-oxide specimen
Rounded sandstone cobble
Quartz-rich sandstone, likely arkosic or lithic sandstone
Dalmatian Jasper
Microcrystalline Quartz with Arfvedsonite/Tourmaline inclusions
Silver-gray metallic ore, possibly galena-bearing rock
Likely galena (PbS) in a host rock, but identification is uncertain from the photograph
Pink Granite (Crystalline Granite)
Igneous Intrusive Rock (Felsic Plutonic)
Iron-rich sandstone or ferruginous conglomeratic sandstone
Ferruginous sandstone, primarily quartz (SiO₂) cemented or stained by iron oxides/hydroxides
Conglomeratic sandstone / breccia-like gravel rock
Polymictic conglomerate (possibly lithified gravel or concrete-like natural conglomerate)
Tumbled amethyst-bearing quartz
Quartz, SiO₂; purple coloration from iron-related defects and irradiation
Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidote and Quartz)
Mixed polished gemstone bead lot, likely dyed agate and quartz
Chalcedony (microcrystalline quartz, SiO₂), with possible amethyst, aventurine, and other dyed quartz varieties
Pink Granite
Phaneritic intrusive igneous rock with dominant Alkali Feldspar
Black tourmaline (schorl) in host rock
Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Pyrite-bearing sulfide specimen
Pyrite (FeS₂), possibly with chalcopyrite (CuFeS₂) and/or marcasite
Malachite specimen
Malachite, Cu₂CO₃(OH)₂, commonly intergrown with chrysocolla and minor copper oxides
Chrysocolla-bearing copper ore
Chrysocolla (hydrated copper aluminosilicate, approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O), likely with malachite, quartz, and iron oxides
Sandstone
Clastic sedimentary rock, predominantly quartz (SiO₂) sand grains cemented by silica, calcite, or iron oxides
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Small rock fragments; likely mixed local gravel, not identifiable to one species
Unidentified lithic fragments; individual rock types cannot be determined reliably from this photograph
Polished mahogany obsidian (likely) pendant
Obsidian, natural volcanic glass; compositionally rhyolitic, chiefly silica-rich glass
Malachite-stained copper-bearing rock
Malachite, Cu₂CO₃(OH)₂, likely coating or alteration of copper sulfide/host rock
Likely galena-bearing rock
Galena, lead sulfide (PbS), in a dark host rock
Unakite (likely)
Epidote–pink feldspar–quartz rock; commonly termed unakite
Raw tourmaline crystal (probable schorl)
Tourmaline group; likely schorl, NaFe3+Al6(BO3)3Si6O18(OH)4
Rounded mixed-grain river pebble, likely granitic rock
Granite (tentative; exact rock type cannot be confirmed from the photograph)
Polished granite or granitic gneiss pebble
Granite; chiefly quartz, feldspar, and mica/amphibole
Black tourmaline bead bracelet
Schorl tourmaline, NaFe²⁺₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Unidentified dark metallic sulfide specimen
Possibly pyrite-, chalcopyrite-, or galena-bearing ore; exact identification requires testing
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Colorless faceted gemstone (likely cubic zirconia)
Cubic zirconia, zirconium dioxide (ZrO₂); possibly synthetic quartz or glass imitation