Diamond
Carbon (C)
gemstone
Category
Mineral (Native Element Alloy)
Browse mineral (native element alloy) specimens identified by the Rock Identifier community.
Learn about Mineral (Native Element Alloy) in the encyclopedia
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Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
igneous
Pink Howlite (Dyed)
Dyed Howlite / Silicoborocalcite (Ca2B5SiO9(OH)5)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Turquoise in Matrix
CuAl6(PO4)4(OH)8·4H2O
gemstone
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
mineral
N/A - Man-made object (Jewelry Chain)
Antiqued or Oxidized Metal Chain (often Steel or Brass)
Mineral (processed metal)
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Gold-Bearing Quartz
Silicon Dioxide with Native Gold (SiO2 + Au)
mineral
Graphite
Graphite (Carbon, C)
Mineral
Obsidian
Obsidian (Volcanic Glass, SiO2 dominated)
igneous
Iron Meteorite
Meteoritic Iron (Fe-Ni alloy)
meteorite
Turquoise
CuAl6(PO4)4(OH)8"""""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" """""""""" • 4H2O (Hydrated copper and aluminum phosphate)
mineral
Turquoise in Matrix
Hydrated copper aluminum phosphate, CuAl6(PO4)4(OH)8·4H2O
mineral
Red Jasper
Silicon dioxide (SiO2) with Iron inclusions
mineral
Agate (Thunderegg segment)
Silicon dioxide (SiO2) - Microcrystalline Quartz/Chalcedony
mineral
Diamond
C (Native Carbon)
gemstone
Diamond (or Cut Clear Gemstone)
C (Native Carbon)
gemstone
Diamond
C (Native Carbon)
gemstone
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
mineral
South Korean 100 Won Coin (Cupronickel)
Cupronickel Alloy (75% Cu, 25% Ni)
mineral-based alloy (anthropogenic)
Black Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Extrusive)
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Bentonite Clay
Montmorillonite (Al,Mg)2Si4O10(OH)2·nH2O
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Aura Druzy Agate (Star Shape)
Silicon Dioxide (SiO2) with Titanium/Metal Vapor Coating
mineral
Iron Meteorite
Siderite (meteoritic iron, Fe-Ni alloy)
mineral
Jasper
Silicon dioxide (SiO2) with iron impurities
sedimentary
Turquoise
Turquoise (Hydrated phosphate of copper and aluminium), CuAl6(PO4)4(OH)8·4H2O
mineral
Psilomelane (Manganese Ore)
Psilomelane (Ba,H2O)2Mn5O10
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Iron Meteorite
Siderite (Iron-Nickel Alloy)
meteorite
Iron Meteorite
Siderite (Iron-Nickel alloy)
meteorite
Iron Meteorite
Siderite (Iron-Nickel alloy)
meteorite
Petoskey Stone
Hexagonaria percarinata
fossil
Quartz Vein Pebble
Silicon dioxide (SiO2)
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Gold in Quartz Matrix
Native Gold (Au) in Quartz (SiO2)
mineral
Gold and Diamond
Native Gold (Au) and Diamond (C)
mineral
Gold-Bearing Quartz
Auriferous Quartz (SiO2 with native Au)
Mineral
Cubic Zirconia (Man-made)
Cubic Zirconia (ZrO2) with Enamel and Metal Alloy
mineral