Turquoise
Hydrated phosphate of copper and aluminum; CuAl6(PO4)4(OH)8·4H2O
mineral
Category
Mineral (Native Element)
Browse mineral (native element) specimens identified by the Rock Identifier community.
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Spiny Oyster Shell
Spondylus varians (Biogenic Calcium Carbonate)
mineral
Gold-bearing Quartz (Auriferous Quartz)
Quartz (SiO2) with native Gold (Au) inclusions
mineral
Gold Ore in Quartz/Matrix
Native Gold (Au) in Quartz (SiO2) matrix
mineral
Amygdaloidal Basalt with Secondary Minerals
Basalt containing secondary mineralization (likely Chlorite, Celadonite, or Zeolites)
igneous
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
mineral
Gold-bearing Quartz
Auriferous Quartz (SiO2 with Native Gold inclusion)
mineral
Standing Liberty Quarter (Silver Specimen)
Native Silver alloy (Ag with Cu traces)
mineral
Gold in Quartz
Hydrothermal Quartz with Native Gold (SiO2 with Au)
mineral
Quartz with Mica Schist Matrix
Quartz (SiO2) in Mica Schist Matrix
metamorphic
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Silver (Sterling Silver)
Argentum (Ag) mixed with Copper (Cu); Formula: Ag+Cu
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
igneous
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Sandstone (Nut-stone / Cup-stone artifact)
Quartz Arenite / Worked Sedimentary Rock
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Copper ore with native copper and quartz/calcite
Malachite–chrysocolla–cuprite-bearing copper ore, likely with quartz or calcite gangue
mineral
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
metamorphic
Native Copper (in coinage alloy)
Copper (Cu)
mineral
Tiny metallic mineral fragment, possibly native gold
Native gold (Au), unconfirmed; could also be pyrite or chalcopyrite
mineral
Agate (specifically a Thunderegg/Agate Nodule)
Cryptocrystalline Quartz (SiO2)
mineral
Chert (variations include Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
mineral
Aura Turquoise or Treated Turquoise Beads
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O) with metallic coating
gemstone
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
mineral
Bismuth
Bismuth (element Bi) with oxidized thin-film interference layer
mineral
Argillite
Argillite (Fine-grained sedimentary rock composed mostly of clay-sized particles)
sedimentary
Turquoise
Hydrated phosphate of copper and aluminum - CuAl6(PO4)4(OH)8·4H2O
mineral
Polished copper-bearing rock, likely cuprite-rich copper ore
Cuprite (Cu₂O) with native copper and iron-oxide matrix, probable
mineral
Snowflake Obsidian
Spherulitic Volcanic Glass (primarily SiO2 with Cristobalite inclusions)
igneous
Iron (Hematite variety)
Iron (Fe) / Hematite (Fe2O3)
mineral
Gold Ore (in Quartz/Gossan matrix)
Native Gold (Au) in Limonite/Quartz matrix
mineral
Gold Ore in Quartz
Native Gold (Au) in Quartz (SiO2) matrix
mineral
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Copper-bearing Mica Schist
Mica Schist with Native Copper inclusions
metamorphic
Raw gold nugget or gold-bearing quartz
Native gold (Au), possibly with quartz (SiO₂) and iron-oxide staining
mineral
Red Sandstone
Arenite (Iron-rich Sandstone)
sedimentary
Obsidian
Obsidian (principally SiO2/Silicon dioxide)
igneous
Moqui Marble (Iron-Oxide Concretion)
Iron Oxide Concretion (Fe2O3)
sedimentary
Heliodor (Yellow Beryl) / Greenish-Yellow Beryl
Beryl (Be3Al2Si6O18)
mineral