Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Category
Mineral In Igneous Rock
Browse mineral in igneous rock specimens identified by the Rock Identifier community.
Snowflake Obsidian
Volcanic glass (SiO2) with Cristobalite (SiO2) inclusions
igneous
Granite
Granite (Felsic intrusive igneous rock)
igneous
Basalt
Basalt (Aphanitic Igneous Rock)
igneous
Basalt
Aphanitic Mafic Igneous Rock
igneous
Biotite Granite
Phaneritic Felsic Igneous Rock
igneous
Basalt (Road Aggregate / Crushed Stone)
Aphanitic Mafic Igneous Rock
igneous
Basalt
Extrusive Mafic Igneous Rock
igneous
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Basalt
Mafic volcanic rock (dominated by Plagioclase and Pyroxene)
igneous
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Vesicular Basalt (Lava Rock)
Basalt (Vesicular Variety)
igneous
Rock Crystal Quartz
Quartz (SiO₂)
Mineral
Basalt
Basalt (Aphanitic mafic volcanic rock)
igneous
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartz (Milky Variant)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Basalt
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Basalt River Pebble
Mafic Igneous Rock (Fine-grained Basalt)
igneous
Granite
Granite (a common name for a felsic intrusive igneous rock)
Igneous Rock
Basalt
Vesicular Basalt (Mafic volcanic rock)
Igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Basalt (River Stone)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Basalt (Beach Pebble)
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Basalt Pebble
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt (River Pebble)
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt (Porphyritic)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt (River Stone)
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (Sea Glass-like texture)
Silicon Dioxide (SiO2)
mineral
Granite Gneiss
Gneiss (derived from granitic protolith)
metamorphic
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride), Na8(Al6Si6O24)Cl2
Mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Snowflake Obsidian
Vitreous Volcanic Rock (Amorphous Silicate), SiO2
igneous
Druzy Quartz (on Geode Fragment)
Silicon Dioxide (SiO2)
mineral
River Basalt (Cobble)
Mafic Igneous Rock (Fine-grained Basalt)
Igneous