Pearl
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Category
Man Made Material (Simulated Mineral)
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
Learn about Man Made Material (Simulated Mineral) in the encyclopedia
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Red Sandstone
Arenite (with Iron Oxide / Hematite staining)
sedimentary
Sandstone
Arenite
sedimentary
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Sandstone
Arenite
sedimentary
Sandstone
Arenite (mostly SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Diamond (Cluster Ring)
Carbon (C)
mineral
Flower Agate
Chalcedony (SiO2) with inclusions
mineral
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
mineral
Chert (with Limestone matrix)
Silicon dioxide (SiO2)
sedimentary
Granodiorite
Intrusive Igneous Rock
igneous
Rose Quartz Carving
Quartum roseum (Variety of Quartz, SiO2)
Mineral
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
mineral
Sandstone (Pebble)
Sandstone (SiO2 with matrix/cement)
sedimentary
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)
Chert Pebble/Nodule
Chert (a microcrystalline or cryptocrystalline sedimentary form of quartz, SiO2)
Sedimentary
Chalcedony (Common Opal or Agate variant)
Silicon dioxide (SiO2) with trace hydration
mineral
Sandstone
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Man-made material (Anthropogenic 'mineraloid')
Agate (specifically, multi-colored or pastel-dyed agate)
Silicon dioxide (SiO2) - specifically, a cryptocrystalline variety of quartz known as Chalcedony, with banding classified as Agate. (If it were Fluorite, the chemical formula would be Calcium Fluoride - CaF2).
Mineral
Aura Quartz (Anomalously Coated Quartz)
Silicon Dioxide (SiO2) treated with vaporized metals
mineral
Desert Rose (also known as Sand Rose)
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Granite
Granite (Phaneritic Quartz-Feldspar intrusive rock)
Igneous
Granodiorite
Granodiorite (phaneritic intrusive igneous rock)
igneous
Sandstone
Arenite (SiO2 based typically)
sedimentary
Diamond
Carbon (C)
mineral
Rough Diamond
Diamond (pure Carbon, C)
mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Obsidian
Obsidian (Volcanic Glass)
igneous
Marble
Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.
Metamorphic Rock
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Diamond
Carbon (C)
gemstone
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Lapis Lazuli
Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2
Metamorphic rock
Sandstone
Arenite (SiO2 based)
sedimentary
Ferrous Slag (Iron Smelting By-product)
Fused Siliceous Slag
Anthropogenic Material (Man-made Rock)
Sea Glass (Kelly Green)
Amorphous Silica (Silicon Dioxide with Iron/Chromium additives)
Anthropogenic specimen (Man-made material)
Goldstone
Aventurine Glass (SiO2 + Cu small inclusions)
man-made glass mineral simulant