Aura Quartz (Coated Quartz)
Silicon Dioxide (SiO2) treated with metallic vapor
mineral
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 →
Silver (Jewelry form)
Native Silver (Ag)
mineral
Uncertain small metallic-looking mineral/rock fragment
Indeterminate; possibly galena-bearing rock or metallic slag
mineral
Bismuth Crystal
Bismuth (element symbol Bi, atomic number 83)
mineral
Granite
Intrusive Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Polished carnelian agate pendant
Microcrystalline quartz (SiO₂), orange chalcedony; likely banded agate
mineral
Gabbro (likely with Pyrite/Sulfide mineralization)
Mafic Intrusive Igneous Rock
igneous
Unidentified dark metallic sulfide specimen
Possibly pyrite-, chalcopyrite-, or galena-bearing ore; exact identification requires testing
mineral
Aura Quartz Bead
Silicon dioxide (SiO2) with metal coating
mineral with artificial coating
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
igneous
Aura Quartz (Coated Quartz)
Silicon Dioxide (SiO2) coated with vaporized metals
mineral
Cassiterite (Tin Ore)
Cassiterite (Tin(IV) Oxide, SnO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Lepidolite Pebble
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Copper Ore (Malachite and Azurite stained rock)
Cupriferous rock containing secondary copper carbonates
mineral
Polished red jasper pendant
Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides
gemstone
Granite
Intrusive Igneous Rock (Felsic)
igneous
Celestine (Celestite)
Celestine (Strontium Sulfate, SrSO4)
mineral
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Diamond (Cluster Ring)
Carbon (C)
mineral
Metal Chain (Likely Steel or a Steel Alloy)
Steel (primarily iron and carbon); specific alloy unknown
Man-made Object (Metal/Alloy)
Granite
Intrusive Igneous Rock
igneous
Metal-rich sulfide ore, likely galena-bearing rock
Galena (PbS) with pyrite/chalcopyrite in a host rock; exact identification requires testing
mineral
Gold Nugget
Gold (Au)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
mineral
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
mineral
Sulfide Ore (likely Galena and Sphalerite in Quartz)
Lead-Zinc Ore (PbS and ZnS)
mineral
Black beaded bracelet, likely black onyx or glass
Possibly chalcedony (microcrystalline quartz, SiO₂); the beads may instead be man-made glass
mineral
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Granite
Felsic intrusive igneous rock
igneous
Polished brecciated jasper pendant
Silica-rich jasper (microcrystalline quartz, SiO₂), brecciated and cemented by silica or iron-rich material
sedimentary
Gold-Bearing Quartz
Silicon Dioxide with Native Gold (SiO2 + Au)
mineral
Small cylindrical mineral/stone fragment
Undetermined; the image is insufficient for reliable mineral identification
mineral
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
igneous
Lepidolite on Matrix
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Blue Celestite
Celestine (Strontium Sulfate, SrSO4)
mineral
Serpentine
(Mg,Fe)3Si2O5(OH)4
metamorphic
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
mineral