Diorite
Intermediate plutonic igneous rock
Category
Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.
Diorite
Intermediate plutonic igneous rock
Diorite (River Pebble)
Intermediate plutonic igneous rock
Diorite
Diorite (plutonic igneous rock)
Arkosic Sandstone
Arkose
Granite
Granitic intrusive igneous rock
Milky Quartz
Silicon Dioxide (SiO2)
Biotite Schist
Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)
Quartzite
Quartzite (primarily SiO2)
Quartzite (River Pebble)
Quartzite (SiO2)
Amethyst Cluster
Amethyst (Silicon Dioxide), chemical formula: SiO2
Granodiorite (River Rock / Cobble)
Granodiorite; Phaneritic intrusive igneous rock dominated by plagioclase, quartz, and hornblende/biotite
Pink Granite
Granite (Phaneritic igneous rock)
Basalt
Basalt
Basalt
Basalt (composition of plagioclase feldspar and pyroxene)
Granite
Granite (Mainly Quartz SiO2, Feldspar KAlSi3O8, and Mica KAl2(AlSi3O10)(OH)2)
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar KAlSi3O8, and Plagioclase)
Granite
Phaneritic Plutonic Rock (Granite)
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Greenstone / Diorite
Intermediate plutonic igneous rock
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Basalt
Basalt (Mafic volcanic rock)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Basalt
Basalt (Mafic volcanic rock)
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Basalt
Basalt (composition of Plagioclase feldspar, Pyroxene, and Olivine)
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Granodiorite
Granodiorite (containing quartz, plagioclase, and biotite/hornblende)
Basalt
Basalt (Mafic Extrusive)
Granite
Granite (Phaneritic Quartz-Feldspar Rock)
Diabase (Trap Rock)
Diabase (also known as Dolerite)
Basalt
Mafic Volcanic Rock (composed mainly of Plagioclase, Pyroxene, and Olivine)
Basalt
Basalt (Mafic volcanic rock)
Granite
Granite
Basalt (with Porphyritic/Vesicular texture)
Extrusive mafic igneous rock
Labradorite
Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)
Diorite
Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)
Granodiorite
Granodiorite
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Iron-Stained Quartzite
Recrystallized Meta-Quartzite (primarily SiO2)
Healer's Gold (Pyrite/Magnetite in Serpentine)
Magnetite (Fe3O4) and Pyrite (FeS2) in Lizardite/Antigorite [Mg3Si2O5(OH)4]