Man-made Jewelry Charm (Enameled Metal)
Not a natural mineral; composed of base metal alloy (likely zinc or brass) and epoxy resin/enamel.
Synthetic / Manufactured Artifact
Category
Organic Gemstone (Not A Mineral)
Browse organic gemstone (not a mineral) specimens identified by the Rock Identifier community.
Learn about Organic Gemstone (Not A Mineral) in the encyclopedia
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Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinicum (Formula: C10H16O)
Mineraloid
Chert / Flint
Silicon dioxide (SiO2)
sedimentary
Amber-bearing rough specimen
Fossilized plant resin (amber; organic mineraloid), commonly succinite
gemstone
Polished amber
Amber (fossilized plant resin), commonly succinite; organic mineraloid rather than a true mineral
gemstone
Lapis Lazuli
Lazurite-dominant rock, (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2
metamorphic
Mahogany Obsidian
Obsidian (Volcanic Glass) with Hematite or Magnetite inclusions, SiO2 (Silicon Dioxide)
igneous
Amber
Succinite (C10H16O)
gemstone
Lapis Lazuli
Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2, Calcite, and Pyrite)
metamorphic
Limestone or Sandstone Cobble
Sedimentary rock (Calcium carbonate or Quartz based)
sedimentary
Chert (Gray Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Vanadinite
Vanadinite, Pb₅(VO₄)₃Cl
mineral
Chert (specifically Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Pearl (likely Freshwater or Akoya Cultured)
Aragonite / Conchiolin composite (CaCO3)
Mineralloid (Organic gemstone)
Pearl
Pearl (Calcium Carbonate with organic conchiolin, CaCO3)
mineral
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
sedimentary
Amber
Succinite (Fossilized Tree Resin)
fossil
Chert (Nodule)
Chert (composition: SiO2)
sedimentary
Amber
Succinite (fossilized resin)
Organic Mineraloid
Limonite (Iron Ore/Bog Iron)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized ammonite fragment
Ammonoidea; likely an ammonite suture-section specimen, commonly Jurassic–Cretaceous
fossil
Polished amber
Amber (fossilized plant resin), commonly succinite; organic mineraloid rather than a true mineral
gemstone
Yellow Chert (Chert / Cryptocrystalline Quartz)
Silicon Dioxide (SiO2)
sedimentary
Amber (Cherry or Red variety)
Succinite (with various trace amounts of organic compounds)
Organic Gemstone (not a rock)
Petrified Wood
Silicified Wood (SiO2 permineralization)
fossil
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Amber Inlay Jewelry
Fossilized Resin (C10H16O)
Organic Gemstone (Biogenic)
Chert (Jasper/Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodular)
Chert (SiO2 - Microcrystalline Quartz)
sedimentary
Shungite
Non-crystalline carbonoid (Shungite)
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Pearl
Aragonite / Calcium Carbonate (CaCO3)
mineral
Sedimentary Rock (Limestone or Siltstone pebble)
Sedimentary rock fragment
sedimentary
Yellow amber
Amber; fossilized plant resin, commonly succinite (not a mineral)
gemstone
Schist
N/A (a rock type, not a mineral formula)
metamorphic
River Jasper (Chert/Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary