Granite Pebble
Felsic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)
Category
Browse metamorphic or igneous with mineral inclusion specimens identified by the Rock Identifier community.
Granite Pebble
Felsic Intrusive Igneous Rock (composed of Quartz, Feldspar, and Mica)
Granite
Granite (Felsic Plutonic Rock)
Unakite
Epidotized Granite
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartzite with Hematite
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 inclusions)
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Yellow Jasper
Silicon Dioxide (SiO2) with hydrated iron oxide impurities
Basalt with Amygdules
Amygdaloidal Basalt
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Greenschist
Greenschist
Greenstone (Epidote/Chlorite Rich Rock)
Metabasalt (often contains Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))
Black Tourmaline in Quartz
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4) in Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt (extrusive volcanic rock with secondary mineral infilling)
Basalt with Quartz/Calcite Inclusions
Mafic Volcanic Rock (Fe-Mg silicate rich)
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Greenschist
Chlorite schist
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Agate Geode
Cryptocrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Corundum (Sapphire/Ruby in Matrix)
Corundum (Al2O3)
Magnetite (Lodestone)
Magnetite (Fe3O4)
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Agate
Silicon Dioxide (SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Granite (Pink/Red variety)
Phaneritic Felsic Intrusive Igneous Rock (composed primarily of Quartz, K-Feldspar, and Plagioclase)
Granite
Granite (Felsic Plutonic Rock)
Granite
Felsic Plutonic Rock (primarily SiO2, Al2O3, K2O, Na2O)
Granite
Phaneritic plutonic rock (composed mainly of SiO2, Al2O3, K2O, and Na2O)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Snowflake Obsidian
Volcanic glass with Spherulite inclusions (SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi₃O₈)