Jewelry Chain with Blue and Clear Gemstones (Likely Cubic Zirconia)
Cubic Zirconia (ZrO₂), Silver or White Gold/Platinum Alloy
Mineral (synthetic) and Metal (precious/base)
Category
Metal (Elemental Mineral)
Browse metal (elemental mineral) specimens identified by the Rock Identifier community.
Learn about Metal (Elemental Mineral) in the encyclopedia
View all →
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
metamorphic
Granite Pebble
Granite
igneous
Native copper nugget
Copper (Cu), often with cuprite or copper-oxide surface
mineral
Diamond bracelet (gold-set)
Diamond, crystalline carbon (C); gold alloy setting
gemstone
Red heart-shaped glass bead in a wire-wrapped jewelry charm
Likely colored glass (amorphous silica-based material); the image does not show an identifiable geological specimen
gemstone
Granite Pebble
Phaneritic intrusive igneous rock
igneous
Rainbow Hematite / Magnetic Hematite
Iron oxide (Fe2O3) - often synthetic/coated for beads
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Cream Marble (Speckled)
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Turquoise cabochon pendant
Turquoise, hydrated copper–aluminum phosphate: CuAl₆(PO₄)₄(OH)₈·4H₂O; likely stabilized or imitation turquoise
mineral
Possible weathered iron-rich rock or slag fragment
Indeterminate; likely limonite/goethite-bearing material, possibly iron slag
mineral
Black tourmaline (likely schorl), polished cabochon
Schorl tourmaline, NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Milky Quartz
Quartz (Silica / Silicon Dioxide - SiO2)
mineral
Beryl (Aquamarine)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Titanium Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Weathered gold-bearing quartz vein fragment
Quartz (SiO₂) with probable iron oxides and sulfide/mineral inclusions
mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Polished moss agate pendant
Moss agate, a chalcedony variety of microcrystalline quartz (SiO₂), with green chlorite/actinolite inclusions
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
mineral
Granite Boulder
Felsic Intrusive Igneous Rock
igneous
Green aventurine pendant (likely)
Quartz, SiO₂, with green fuchsite inclusions (aventurescent quartz)
mineral
Graphite
Graphite (Carbon, C)
Mineral
Gossan (Limonite/Ironstone)
Hydrated Iron Oxide (FeO(OH)·nH2O)
sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Limonite-stained Quartz
Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O) coatings
mineral
Gold Ore in Quartz
Native Gold (Au) in Quartz (SiO2) matrix
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Lapis lazuli bead bracelet
Lapis lazuli, chiefly lazurite (Na₃Ca(Si₃Al₃)O₁₂S); commonly with calcite and pyrite
metamorphic
Sandstone (Quartzose)
Arenite (predominantly SiO2)
sedimentary
Native gold-bearing quartz vein specimen
Native gold (Au) in quartz, with possible iron-oxide and sulfide minerals
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Granite
Intrusive Igneous Rock
igneous
Quartz Vein in Siltstone
SiO2 (Quartz) on clastic sedimentary matrix
sedimentary
Pallasite Meteorite (Sliced and Polished)
Pallasite (Iron-Nickel Matrix with Olivine crystals)
mineral
Peacock Ore (Chalcopyrite)
Chalcopyrite (CuFeS2)
mineral
Quartz-veined Metamorphic Rock
Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)
metamorphic
Native Copper
Copper (Cu)
mineral
Blue-green faceted pendant stone
Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz
gemstone