Amber and Citrine Quartz
Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)
mineral
Category
Organic Crystal (Mineraloid)
Browse organic crystal (mineraloid) specimens identified by the Rock Identifier community.
Amber
Succinicum (C10H16O)
mineral
Petrified Wood
Silicified wood (Quartz replacement, SiO2)
fossil
Amber
Succinite (fossilized resin, C10H16O)
mineral
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinates (Fossilized Resin)
mineral
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
mineraloid (synthetic)
Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary (or mineraloid)
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
mineraloid (synthetic)
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
mineraloid (synthetic)
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Ironstone concretion / Limonitic Sandstone
Goethite/Hematite Cemented Sandstone (Hydrated Iron Oxide)
sedimentary
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Raw Amber / Resin Mineral
Succinite (Fossilized Tree Resin)
gemstone
Sea Glass
Amorphous Silica (SiO2) with various additives
Mineraloid (Anthropogenic)
Moldavite
Silica glass with small amounts of aluminum, iron, and other elements
Mineraloid / Tektite
Pyritic Shale
Carbonaceous Shale with Iron Pyrite (FeS2)
sedimentary
Chert (Green Fossilized Algae or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
sedimentary
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral/Mineraloid
Amethyst, Aquamarine, and Pearl Ring
SiO2 (Amethyst), Be3Al2Si6O18 (Aquamarine), CaCO3 (Pearl)
gemstone
Amber
Amber (C10H16O)
mineral
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
sedimentary
Jade
Jadeite or Nephrite
Mineral/Mineraloid
Amber
Succiniferous fossil resin (C10H16O)
gemstone
Fossiliferous Shale
Carbonaceous Shale (with potential plant/aquatic fossils)
sedimentary
Natural Pearl
Calcium carbonate (primarily Aragonite and Conchiolin), CaCO3
mineral
Fossiliferous Kalkstein (Marl/Sandstone)
Fossiliferous calcarenite/siltstone
sedimentary
Black Chert
Carbonaceous Chert (Silicon dioxide, SiO2)
sedimentary
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Organic Materia (Not a rock or mineral)
Amber
Succinite (approximate formula C10H16O)
mineral
Obsidian
Obsidian (volcanic glass)
Igneous
Amber
Succinite (C10H16O)
mineral
Petrified Wood
Silicified Wood (SiO2 permineralization)
fossil
Amber
Succinite (fossilized resin)
mineral
Amber
Succinite (Approximate formula: C10H16O)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Amber
Succinite
mineral
Fossilized Shell in Limestone
Bivalve fossil (CaCO3) in Carbonate Sedimentary Rock
sedimentary
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)