Amber
Succinrite (Organic Gemstone)
mineraloid
Category
Mineraloid (Impact Glass)
Browse mineraloid (impact glass) specimens identified by the Rock Identifier community.
Learn about Mineraloid (Impact Glass) in the encyclopedia
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Amber
Succinite (a fossilized organic resin containing succinic acid)
mineraloid
Black Obsidian
Obsidian (Volcanic Glass)
igneous
Quartz Pebble (Sea Glass-like texture)
Silicon Dioxide (SiO2)
mineral
Black Opal (Triplet)
Hydrated Silica (SiO2·nH2O)
mineral
Obsidian
Volcanic Glass (SiO2)
igneous
Amber
Succinite (fossilized tree resin)
mineraloid
Baltic Amber
Succinite (Polmerized conifer resin)
mineraloid
Amber
Succinite (a variety of fossilized tree resin); chemical formula appx. C10H16O
mineraloid
Amber with Inclusion
Succiniferous fossil resin (C10H16O)
mineraloid
Amber
Succinite (organic hydrocarbon)
mineraloid
Amber
Succinite (Resinous fossilized tree sap)
Mineraloid
Pumice
Vesicular Rhyolite / Pumice
igneous
Leland Blue Stone
Anthropogenic Iron Smelting Slag
mineraloid
Amber
Succinicum (Organic Gemstone - Resinite)
mineraloid
Obsidian
Volcanic glass (Amorphous silicon dioxide)
igneous
Mahogany Obsidian
Volcanic Glass with Hematite inclusions
igneous
Quartz (Sea Glass or River-worn Pebble style)
Silicon Dioxide (SiO2)
mineral
Precious Opal
SiO2·nH2O (Hydrated Silicon Dioxide)
mineraloid
Common Opal (Green Opal / Pistachio Opal)
Hydrated silica (SiO2·nH2O)
mineraloid
Black Obsidian
Amorphous volcanic glass (SiO2)
igneous
Mahogany Obsidian
Volcanic Glass (SiO2 + Fe2O3)
igneous
Pink Opal
Hydrated Silicon Dioxide (SiO2 · nH2O)
mineraloid
Amber
Succinite (specifically for Baltic Amber), Formula: C10H16O
Mineraloid
Black Obsidian
Volcanic Glass (Amorphous Silicon Dioxide)
igneous
Obsidian
Volcanic Glass (70-75% SiO2)
igneous
Mahogany Obsidian
Obsidian (volcanic glass with hematite/magnetite inclusions)
igneous
Snowflake Obsidian
Volcanic glass containing Spherulitic Cristobalite (SiO2)
igneous
Obsidian (specifically Mahogany Obsidian)
Volcanic glass (high silica content, SiO2)
igneous
Moldavite
SiO2 (+ Al2O3, FeO, K2O) - Natural Tektite Glass
gemstone
Obsidian
Obsidian (Volcanic Glass)
igneous
Obsidian
Volcanic glass
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Black Obsidian
Volcanic Glass (SiO2 + MgO / Fe3O4)
igneous
Amber
Succinite (C10H16O)
mineraloid
Mahogany Obsidian
Volcanic glass containing Hematite or Magnetite (SiO2 + Fe2O3)
igneous
Obsidian
Obsidian (volcanic glass), primarily SiO2 (silicon dioxide)
igneous
Gold Sheen Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Obsidian
Obsidian (Volcanic Glass, SiO2)
igneous
Obsidian
Volcanic Glass (SiO2 rich)
Igneous
Gold Sheen Obsidian
Obsidian (volcanic glass with SiO2 + gas inclusions)
igneous
Obsidian
Obsidian (Volcanic Glass), primarily SiO2
igneous