Serpentine
Serpentinite (complex of Mg, Fe, Ni, Al, Zn, Mn)Si2O5(OH)4
metamorphic
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Granite (Phaneritic igneous rock)
igneous
Aquamarine with Sunstone
Aquamarine (Be3Al2Si6O18), Sunstone (Na,Ca)Al(Si,Al)Si2O8
Mineral
Granite Glacial Erratic
Intrusive Phaneritic Felsic Rock (Granite)
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcite (CaCO3)
mineral
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Amygdaloidal Basalt
Amygdaloidal Basalt (containing secondary minerals like Quartz, Zeolites, or Calcite)
igneous
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Plutonic Rock (High Silica content)
igneous
Cobaltoan Calcite / Pink Dolomite (Possible)
Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))
Mineral / Rock (depending on purity)
Corundum
Corundum (Aluminium oxide, Al2O3)
mineral
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
Mineral
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
Mineral
Quartzite
Quartzite (SiO2)
metamorphic
Blue Aventurine
Silicon Dioxide (SiO2) containing Dumortierite or Crocidolite inclusions
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Green Quartzite (River Stone)
Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)
metamorphic
Unakite
Unakite (metasomatized granite)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Serpentine (Serpentinite)
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Unakite
Unakite (Episyenite composition: Feldspar, Epidote, and Quartz)
metamorphic
Red Quartzite (Ferruginous Quartz)
Quartzite (SiO2 with Fe2O3 inclusions)
metamorphic
Quartzite (River Pebble)
SiO2 (recrystallized Quartz)
metamorphic
Mica Schist
Mica Schist (contains Muscovite/Biotite, Quartz)
metamorphic
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
Sedimentary
Granite Pegmatite
Phaneritic Plutonic Igneous Rock
igneous
Unakite (Tumbled)
Epidotized Granite
metamorphic
Limonitic Quartzite
Metamorphosed sandstone with Limonite (FeO(OH)·nH2O) staining
metamorphic
Unakite
Epidotized Granite
metamorphic
Quartz Vein with Host Rock (Greywacke/Siltstone)
Silicon Dioxide (SiO2) within Clastic Sedimentary/Metamorphic Matrix
metamorphic
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Amygdaloidal Basalt
Amygdaloidal Basalt (extrusive volcanic rock with secondary mineral infilling)
igneous
Coral Fossil (Petrified Coral)
Scleractinia (Order) - Calcified Fossil Skeleton (CaCO3)
sedimentary
Chert / Flint Conglomerate
Silicified Sedimentary Breccia (primarily SiO2)
sedimentary
Ferruginous Chert (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)
Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))
mineral