Granite (weathered)
Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Category
Igneous Rock
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Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite (River-worn Cobble)
Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
igneous
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granite
Granite (Phaneritic Igneous Rock; primarily Quartz, Alkali Feldspar, and Plagioclase)
igneous
Pink Granite (Alkali Feldspar Granite)
Phaneritic Felsic Igneous Rock (composed primarily of KAlSi3O8, SiO2, and NaAlSi3O8)
igneous
Diorite
Phaneritic Intrusive Igneous Rock (composed of Plagioclase feldspar, Hornblende, and Biotite)
igneous
Granite
Phaneritic Felsic Igneous Rock (primarily SiO2, Al2O3, K2O, Na2O)
igneous
Pink Granite
Phaneritic Plutonic Igneous Rock (composed of K-feldspar, Quartz, and Mica)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of Orthoclase Feldspar and Quartz)
igneous
Granite (Weathered/Oxidized)
Phaneritic Felsic Igneous Rock (composed of Quartz, Orthoclase Feldspar, and Mica)
igneous
Granite
Phaneritic Felsic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Felsic Igneous Rock (primarily SiO2, Al2O3, K2O, Na2O)
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)
igneous
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Alkali Feldspar, and Plagioclase)
igneous
Black Obsidian
Obsidian (Volcanic glass), 70–75% SiO2
igneous
Dalmatian Jasper
Peralkaline rhyolite
igneous
Aquamarine
Beryl (Be3Al2Si6O18 with trace Fe2+)
mineral
Spessartine Garnet in Quartz/Feldspar Pegmatite
Spessartine (Mn3Al2(SiO4)3) in Quartz (SiO2) and Feldspar
Mineral in Igneous Rock
Basalt
Basalt (Mafic volcanic rock)
igneous
Quartz Druzy on Basalt
Silicon Dioxide (SiO2) on Mafic Volcanic Rock
Mineral on Igneous Rock
Granite
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Obsidian (Black Obsidian)
Amorphous volcanic glass (primarily SiO2)
igneous
Peridotite (Dunite)
Peridotite (comprising mainly Olivine)
igneous
Blue Onyx (Agate)
Cryptocrystalline Quartz (SiO2)
mineral
Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Basalt with Quartz Veins
Aphanitic Mafic Igneous Rock (Main body: SiO2, Fe, Mg rich)
igneous
Basalt River Stone
Basalt
igneous
Garnet Gneiss
Garnetiferous Gneiss
metamorphic
K2 Jasper (K2 Granite)
Azurite in Granite (Biotite Granite with Azurite inclusions)
igneous
Basalt (River Pebble)
Basalt (dominated by Plagioclase Feldspar and Pyroxene)
igneous
Granodiorite
Granodiorite (NaAlSi3O8 to CaAl2Si2O8 / SiO2)
Igneous
Basalt
Basalt
igneous
Granodiorite (River Rock / Cobble)
Granodiorite; Phaneritic intrusive igneous rock dominated by plagioclase, quartz, and hornblende/biotite
igneous
Granitic Sand
Detrital sediment (predominantly Quartz, Feldspar, and Mica)
sedimentary
Obsidian / Volcanic Glass
Obsidian (principally SiO2, usually 70% or more)
igneous
Obsidian
Volcanic Glass (SiO2)
igneous
Obsidian (Black)
Obsidian (approx. 70–75% SiO2)
igneous
Orange Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-feldspar, Quartz, and Biotite)
igneous
Gabbro
Phaneritic Basic Igneous Rock (composed primarily of pyroxene and calcium-rich plagioclase)
igneous