Man-made Glass (Tumbled/Shaped)
Amorphous Silicon Dioxide (SiO2) with metal oxide colorants
Mineraloid (synthetic)
Category
Sedimentary (Or Mineraloid)
Browse sedimentary (or mineraloid) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Or Mineraloid) in the encyclopedia
View all →
Opalite
Synthetic Fluorescent Glass (SiO2 + impurities)
mineraloid (synthetic)
Synthetic Convention Badge (Plastic/PVC)
Polyvinyl Chloride (PVC) / Polycarbonate
mineraloid (synthetic)
Amber
Succinite (C10H16O)
Mineraloid (Organic)
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral/Mineraloid
Jade
Jadeite or Nephrite
Mineral/Mineraloid
Amber
Succinite
Organic Mineraloid
Pearl (Cultured or Natural)
Aragonite (CaCO3) with Conchiolin
Organic Mineraloid
Amber
Succinite (Fossilized Tree Resin)
Organic Mineraloid
Opalite (Synthetic Moonstone/Opal)
Synthetic Silica Glass
mineraloid (synthetic)
Opalite
Synthetic Opalised Glass
mineraloid (synthetic)
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
Amber
Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)
Organic Mineraloid
Pearl (nacre)
Calcium Carbonate (mostly CaCO3 as Aragonite) and Conchiolin
Organic Mineraloid
Opalite
Synthetic Glass, SiO2 base with metallic inclusions
mineraloid (synthetic)
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2 + tracing minerals
mineraloid / impactite
Slag (Industrial Glass Slag)
Amorphous Silica / Ferro-silicate Slag
mineraloid / anthropogenic
Red Amber (Burmite/Cherry Amber)
Succinite / Retinite (Organic Fossilized Resin, C10H16O)
Mineraloid (Organic)
Amber
Succinite (with empirical formula approximately C10H16O)
Organic Mineraloid
Amber
Succinite (Formula: C10H16O)
Organic Mineraloid
Pearl (Imitation or Cultured)
Calcium Carbonate (Aragonite/Calcite) - CaCO3
Mineraloid (Organic)
Slag (Industrial Glass)
Artificial Vitreous Silicate
mineraloid (anthropogenic)
Amber
Succinite (fossilized resin)
Organic Mineraloid
Amber (Burmite)
Fossilized tree resin (Succinite variant)
Organic mineraloid
Amber
Succinite
Organic (Mineraloid)
Amber
Succinite (C10H16O)
Organic Mineraloid
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Sea Glass
Amorphous Silica (SiO2) with various additives
Mineraloid (Anthropogenic)
Amber
Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)
Organic Mineraloid
Amber
Succinite
Organic mineraloid
Pearl (in a decorative hair comb setting)
Calcium carbonate (CaCO3) primarily as Aragonite, bonded with Conchiolin
Organic Mineraloid
Opalite
Man-made Glass (SiO2 + additives)
mineraloid (synthetic)
Amber
Succinite (Formula: C10H16O)
Organic Mineraloid
Amber
Succinite
Organic Mineraloid
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Slag
Ferrous slag (by-product of iron smelting)
Mineraloid / Anthropogenic
Amber
Succinite (fossilized tree resin)
Organic Mineraloid
Moldavite
Silica glass with small amounts of aluminum, iron, and other elements
Mineraloid / Tektite
Polished black stone egg, probably black obsidian
Obsidian, a natural volcanic glass; composition primarily silica-rich glass (approximately SiO₂), with variable iron and other trace elements
gemstone
Obsidian
Obsidian (volcanic glass)
Igneous
Honey-colored amber (possibly copal)
Amber: fossilized tree resin, an organic mineraloid; composition varies, mainly carbon, hydrogen, and oxygen
gemstone
Polished amber
Amber (fossilized plant resin), commonly succinite; organic mineraloid rather than a true mineral
gemstone