Rock Identifier

Category

Mineral (Or Mineraloid If Microcrystalline)

Browse mineral (or mineraloid if microcrystalline) specimens identified by the Rock Identifier community.

Learn about Mineral (Or Mineraloid If Microcrystalline) in the encyclopedia

Shungite

Flower Jasper

Feather Jasper

Dendritic Jasper

Blue Jasper

Sperrylite

Brookite

Leopard Skin Jasper

Leopard Skin Jasper

Banalsite

Black Shale

Garnierite

Wulfenite

Amber / Copal (Fossilized Tree Resin (Succinate)) — Mineraloid

Amber / Copal

Fossilized Tree Resin (Succinate)

White Precious Opal (Hydrated Silica (SiO2·nH2O)) — mineral

White Precious Opal

Hydrated Silica (SiO2·nH2O)

Amber (Tumbled/Polished) (Succinite (Fossilized Tree Resin)) — mineraloid

Amber (Tumbled/Polished)

Succinite (Fossilized Tree Resin)

Amber (Succinite (C10H16O)) — mineraloid

Amber

Succinite (C10H16O)

Amber (Succinite (C10H16O)) — mineraloid

Amber

Succinite (C10H16O)

Amber (Succinite (specifically for Baltic Amber), Formula: C10H16O) — Mineraloid

Amber

Succinite (specifically for Baltic Amber), Formula: C10H16O

Amber (Succinite (Resinous fossilized tree sap)) — Mineraloid

Amber

Succinite (Resinous fossilized tree sap)

Opal (Hydrated Amorphous Silica (SiO2·nH2O)) — mineral

Opal

Hydrated Amorphous Silica (SiO2·nH2O)

Mahogany Obsidian (Volcanic glass (Silicon Dioxide with Hematite/Magnetite inclusions)) — igneous

Mahogany Obsidian

Volcanic glass (Silicon Dioxide with Hematite/Magnetite inclusions)

Snowflake Obsidian (Spherulitic Volcanic Glass (SiO2 + impurities)) — igneous

Snowflake Obsidian

Spherulitic Volcanic Glass (SiO2 + impurities)

Amber (Succinite (Carbon-based organic compound; approximate formula C10H16O)) — Mineraloid

Amber

Succinite (Carbon-based organic compound; approximate formula C10H16O)

Common Opal in Host Rock (Hydrated Silica (SiO2·nH2O)) — mineraloid

Common Opal in Host Rock

Hydrated Silica (SiO2·nH2O)

Bumblebee Jasper (Anhydrite-Aragonite mixture with Orpiment and Realgar) — mineraloid

Bumblebee Jasper

Anhydrite-Aragonite mixture with Orpiment and Realgar

Black Opal (Triplet) (Hydrated Silica (SiO2·nH2O)) — mineral

Black Opal (Triplet)

Hydrated Silica (SiO2·nH2O)

Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Mahogany Obsidian (Obsidian (volcanic glass with hematite/magnetite inclusions)) — igneous

Mahogany Obsidian

Obsidian (volcanic glass with hematite/magnetite inclusions)

Amber (Succinicum (Organic Gemstone - Resinite)) — mineraloid

Amber

Succinicum (Organic Gemstone - Resinite)

Snowflake Obsidian (Volcanic glass containing Spherulitic Cristobalite (SiO2)) — igneous

Snowflake Obsidian

Volcanic glass containing Spherulitic Cristobalite (SiO2)

Common Opal (Potch) (Hydrated Silica (SiO2·nH2O)) — mineral

Common Opal (Potch)

Hydrated Silica (SiO2·nH2O)

Obsidian (Obsidian (Volcanic Glass)) — igneous

Obsidian

Obsidian (Volcanic Glass)

Obsidian (Black Obsidian) (Obsidian (Volcanic Glass)) — igneous

Obsidian (Black Obsidian)

Obsidian (Volcanic Glass)

White Opal (Common) (Hydrated Silica (SiO2·nH2O)) — mineral

White Opal (Common)

Hydrated Silica (SiO2·nH2O)

Amber (Copal) (Succinate (Fossilized Tree Resin)) — mineraloid

Amber (Copal)

Succinate (Fossilized Tree Resin)

Cullet Glass (Man-made Glass Slag) (Amorphous Silica (SiO2) with chemical additives) — Mineraloid

Cullet Glass (Man-made Glass Slag)

Amorphous Silica (SiO2) with chemical additives

Amber (Succinite (a specific common type) or Fossilized Tree Resin (C10H16O)) — Mineraloid

Amber

Succinite (a specific common type) or Fossilized Tree Resin (C10H16O)

Mahogany Obsidian (Obsidian (SiO2 + Fe2O3)) — igneous

Mahogany Obsidian

Obsidian (SiO2 + Fe2O3)

Opal (Precious Opal) (Hydrated Silica (SiO2·nH2O)) — mineral

Opal (Precious Opal)

Hydrated Silica (SiO2·nH2O)

Snowflake Obsidian (Volcanic Glass (spherulitic Obsidian) - SiO2 (with Cristobalite inclusions)) — igneous

Snowflake Obsidian

Volcanic Glass (spherulitic Obsidian) - SiO2 (with Cristobalite inclusions)

Obsidian (Volcanic glass (silica-rich rhyolitic melt; primarily SiO₂)) — igneous

Obsidian

Volcanic glass (silica-rich rhyolitic melt; primarily SiO₂)

Obsidian (Volcanic Glass (comprised primarily of SiO2)) — Igneous

Obsidian

Volcanic Glass (comprised primarily of SiO2)

Limonite (Iron Ore) (Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)) — Mineral

Limonite (Iron Ore)

Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)

Fire Opal (in Matrix) (Hydrated Silica (SiO2·nH2O)) — mineral

Fire Opal (in Matrix)

Hydrated Silica (SiO2·nH2O)

Shungite (Shungite (carbon-rich Precambrian mineraloid)) — mineral

Shungite

Shungite (carbon-rich Precambrian mineraloid)

Amber (Copal) (Succinate (Fossilized Resin)) — mineraloid

Amber (Copal)

Succinate (Fossilized Resin)

Amber / Copal (Succinite (fossilized tree resin)) — mineraloid

Amber / Copal

Succinite (fossilized tree resin)

Mahogany Obsidian (Volcanic Glass with Hematite/Magnetite (SiO2 + Fe2O3)) — igneous

Mahogany Obsidian

Volcanic Glass with Hematite/Magnetite (SiO2 + Fe2O3)

Limonite and Goethite (Ironstone) (Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)) — sedimentary

Limonite and Goethite (Ironstone)

Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)

Natural White Pearl (Calcium Carbonate (Aragonite/Calcite) with Conchiolin - CaCO3) — mineraloid

Natural White Pearl

Calcium Carbonate (Aragonite/Calcite) with Conchiolin - CaCO3

Cullet Glass (Slag) (Amorphous Silicon Dioxide (Man-made)) — Mineraloid

Cullet Glass (Slag)

Amorphous Silicon Dioxide (Man-made)

Obsidian (Volcanic glass (Amorphous silicon dioxide)) — igneous

Obsidian

Volcanic glass (Amorphous silicon dioxide)

Obsidian (Volcanic glass) — igneous

Obsidian

Volcanic glass