Fulgurite
Liesegang (Fulgurite)
Mineraloid
Category
Mineraloid
Browse mineraloid specimens identified by the Rock Identifier community.
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Amber
Succinite (specifically for Baltic amber); approximate formula C10H16O
Mineraloid
Amber (Raw)
Succinite (Fossilized Resin)
mineraloid
Amber
Succinurite (C10H16O)
mineraloid
Opal
Hydrated silica (SiO2·nH2O)
mineraloid
Amber
Succinite (Carbon-based organic compound; approximate formula C10H16O)
Mineraloid
Amber (with potentially inclusions)
Succinite (Fossilized Tree Resin)
Mineraloid
Fire Opal (in matrix)
Hydrated Silica (SiO2·nH2O)
Mineraloid
Amber / Copal
Succinite (fossilized resin)
mineraloid
Amber
Succinite
mineraloid
Amber
Succinite (Fossilized Tree Resin)
mineraloid
Amber
Succinite (C10H16O)
mineraloid
Cullet Glass (Slag Glass)
Amorphous Silicon Dioxide (Industrial Man-made)
mineraloid
Amber / Copal
Fossilized Tree Resin (Succinate)
Mineraloid
Amber (specifically Burmese Amber or Burmite)
Succiniferous fossil resin (C10H16O)
mineraloid
Fulgurite
Fulgurite (Lechatelierite-rich fused silica)
mineraloid
Amber
Succinite (Formula: C10H16O)
Mineraloid
Ethiopian Opal (Welo Opal)
Hydrated Amorphous Silica (SiO2·nH2O)
mineraloid
Amber
Succinite (fossilized tree resin)
mineraloid
Amber
Succinite (a variety of fossilized tree resin); chemical formula appx. C10H16O
mineraloid
Dragon's Breath (Mexican Opal Glass)
Artisan Foil Glass (SiO2 based)
mineraloid
Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (fossilized resin); C10H16O
mineraloid
Cobalt Blue Slag Glass
Amorphous Silicon Dioxide (anthropogenic) with Cobalt additives
mineraloid
Baltic Amber
Succinite (Polmerized conifer resin)
mineraloid
Sea Glass (often mistaken for Gemstones)
Amorphous Silica (SiO2) with trace additives
mineraloid
Amber
Fossilized Tree Resin (Succinite)
mineraloid
Shungite
Carbon-rich mineraloid (Amorphous carbon)
mineral
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
mineral
Amber
Succinates
mineraloid
Pearl (Biogenic Mineraloid)
Calcium carbonate (CaCO3) primarily as Aragonite
mineral
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Black Obsidian
Volcanic Glass (Amorphous Silicon Dioxide)
igneous
Black Obsidian
Volcanic Glass (SiO2)
igneous
Snowflake Obsidian
Volcanic glass containing Spherulitic Cristobalite (SiO2)
igneous
Obsidian
Volcanic Glass (70-75% SiO2)
igneous
Mahogany Obsidian
Volcanic Glass with Hematite inclusions (SiO2 + Fe2O3)
igneous
Opal
Hydrated Silica (SiO2·nH2O)
mineral
Gold Sheen Obsidian
Obsidian (volcanic glass with SiO2 + gas inclusions)
igneous
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrated iron(III) oxide-hydroxide mixture)
mineral
Obsidian
Volcanic Glass (SiO2)
igneous
Obsidian
Volcanic Glass (SiO2)
igneous