Rock Identifier

Category

Metamorphic Rock (Composed Of Multiple Minerals)

Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.

Fluorite with Rhodochrosite (Fluorite (CaF2) and Rhodochrosite (MnCO3)) — Mineral

Fluorite with Rhodochrosite

Fluorite (CaF2) and Rhodochrosite (MnCO3)

Quartz / Quartzite (Quartzite (primarily Silicon Dioxide, SiO2)) — metamorphic

Quartz / Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Dendritic Agate or Spotted Quartzite (Silicon Dioxide (SiO2) with inclusions) — metamorphic

Dendritic Agate or Spotted Quartzite

Silicon Dioxide (SiO2) with inclusions

Amygdaloidal Basalt (Amygdaloidal Basalt (extrusive volcanic rock)) — Igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (extrusive volcanic rock)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Riverstone Quartzite (Quartzite (primarily SiO2)) — metamorphic

Riverstone Quartzite

Quartzite (primarily SiO2)

Moonstone (Orthoclase feldspar ((K,Na)AlSi3O8)) — mineral

Moonstone

Orthoclase feldspar ((K,Na)AlSi3O8)

Unakite (Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Unakite

Epidotized Granite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Dinosaur Bone (Gembone) (Agatized Dinosaur Bone (Silicified Paleo-osteoid)) — metamorphic

Dinosaur Bone (Gembone)

Agatized Dinosaur Bone (Silicified Paleo-osteoid)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Diorite (River Cobble) (Phaneritic Intermediate Plutonic Rock) — igneous

Diorite (River Cobble)

Phaneritic Intermediate Plutonic Rock

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Lepidolite in Quartz (Lithium-bearing Ore) (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)) — igneous/mineral

Lepidolite in Quartz (Lithium-bearing Ore)

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)

igneous/mineral

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) — metamorphic

Nephrite Jade

Ca2(Mg,Fe)5Si8O22(OH)2

Quartz (Silicon Dioxide (SiO₂)) — Mineral

Quartz

Silicon Dioxide (SiO₂)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Baroque Pearl (and potentially a small Sapphire/Blue Topaz) (Pearl: Calcium Carbonate (aragonite or calcite) with conchiolin. Sapphire: Aluminum Oxide (Al2O3). Blue Topaz: Al2SiO4(F,OH)2.) — Organic Gemstone (for pearl), Mineral (for sapphire/topaz)

Baroque Pearl (and potentially a small Sapphire/Blue Topaz)

Pearl: Calcium Carbonate (aragonite or calcite) with conchiolin. Sapphire: Aluminum Oxide (Al2O3). Blue Topaz: Al2SiO4(F,OH)2.

Organic Gemstone (for pearl), Mineral (for sapphire/topaz)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Conglomerate (Clastic sedimentary rock (Conglomerate)) — sedimentary

Conglomerate

Clastic sedimentary rock (Conglomerate)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Unakite (Epidotized Granite) — metamorphic

Unakite

Epidotized Granite

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Pink Granite (Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Plagioclase)) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Plagioclase)

Ironstone Concretion / Limonite Node (Ferruginous Sedimentary Rock (composed primarily of Limonite FeO(OH)·nH2O and Goethite)) — sedimentary

Ironstone Concretion / Limonite Node

Ferruginous Sedimentary Rock (composed primarily of Limonite FeO(OH)·nH2O and Goethite)

Granite (Granite (Phaneritic intrusion / SiO2 + KAlSi3O8 + NaAlSi3O8)) — igneous

Granite

Granite (Phaneritic intrusion / SiO2 + KAlSi3O8 + NaAlSi3O8)

Fossilized Horn Coral (Order Rugosa (Rugose Coral)) — sedimentary

Fossilized Horn Coral

Order Rugosa (Rugose Coral)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Serpentine (Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4) — metamorphic

Serpentine

Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Basalt with vesicles/amygdules (Basalt (containing volcanic glass and plagioclase)) — igneous

Basalt with vesicles/amygdules

Basalt (containing volcanic glass and plagioclase)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Tiger Iron (Tiger Iron (composite of Tiger's Eye, Red Jasper, and Hematite)) — metamorphic

Tiger Iron

Tiger Iron (composite of Tiger's Eye, Red Jasper, and Hematite)

Quartz (Milky/Common) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily Quartz with Hematite/Limonite oxides)

Vesicular Basalt (Amygdaloidal Basalt (Mafic extrusive volcanic rock)) — Igneous

Vesicular Basalt

Amygdaloidal Basalt (Mafic extrusive volcanic rock)