Amber with Fossil Inclusion
Fossilized Tree Resin (Succinite)
fossil
Category
Non Geological
Browse non geological specimens identified by the Rock Identifier community.
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Opalite
Synthetic Opalite Glass / Opalized Glass
gemstone
Quartzite Beach Pebble
Quartzite (primarily SiO2)
metamorphic
Coal (Anthracite)
Anthracite (Metamorphosed Coal)
sedimentary
Quartzite Cobble
Quartzite (SiO2)
metamorphic
Mahogany Obsidian
Volcanic Glass (High-silica Rhyolite)
igneous
Quartzite
Quartzite
metamorphic
Anthracite Coal
Anthracite (Carbon-based metamorphic rock)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Obsidian Fetish Carving with Turquoise Inlay
Volcanic Glass with Turquoise (CuAl6(PO4)4(OH)8·4H2O)
igneous
Quartzite Cobble
Quartzite (SiO2)
metamorphic
Pink Opal
Hydrated Silicon Dioxide (SiO2 · nH2O)
mineraloid
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Snowflake Obsidian
Volcanic Glass with Spherulite Inclusions (70–75% SiO2)
igneous
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite (SiO2 + Fe2O3)
igneous
Leland Blue Stone
Anthropogenic Iron Smelting Slag
mineraloid
Anthracite
Anthracite Coal
metamorphic
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions (SiO2)
igneous
Anthracite Coal
Anthracite (Carbon based)
metamorphic
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
mineral
Libyan Desert Glass
Impactite silica glass (SiO2)
tektite (impact glass)
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Mahogany Obsidian Arrowhead
Volcanic Glass with Hematite/Magnetite inclusions (Amorphous Silicon Dioxide)
igneous
Obsidian (specifically Rainbow or Silver Sheen Obsidian)
Volcanic Glass (predominantly SiO2)
Igneous
Amber
Succinite (a fossilized organic resin)
mineral
Quartzite Cobble
Quartzite (primarily SiO2)
metamorphic
Amber
Succinite (specific to Baltic amber), fossilized tree resin
Organic Mineraloid
Mahogany Obsidian
Volcanic glass (SiO2 with Hematite or Magnetite inclusions)
igneous
Mahogany Obsidian
Obsidian (volcanic glass with hematite/magnetite inclusions)
igneous
Mixed Mineral and Rock Collection
Mixed geological specimens (Quartz, Amethyst, Rose Quartz, Jasper, Epidote, Chert)
mineral
Amber
Fossilized Tree Resin
gemstone
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Green Quartzite
Quartzite (SiO2 with chlorite/epidote inclusions)
metamorphic
Quartzite
Metamorphosed Quartz Sandstone
metamorphic
Siltstone
Siltstone (clastic sedimentary rock)
sedimentary
Slag
Anthropogenic Vitreous Silica/Iron oxides
mineral-like byproduct
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
igneous
Obsidian
Volcanic Glass (Silicon Dioxide with impurities)
igneous
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic