Rock Identifier

Category

Mineral Based Composite

Browse mineral based composite specimens identified by the Rock Identifier community.

Learn about Mineral Based Composite in the encyclopedia

Pyroxenite

Pegmatite (with Muscovite Mica and Quartz) (Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)) — igneous

Pegmatite (with Muscovite Mica and Quartz)

Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)

Granite (Granite (plutonic igneous rock)) — igneous

Granite

Granite (plutonic igneous rock)

Tree Agate (Silica (SiO2) with Chlorite inclusions) — mineral

Tree Agate

Silica (SiO2) with Chlorite inclusions

Mica Schist (Mica Schist (primarily Muscovite and Quartz composition)) — metamorphic

Mica Schist

Mica Schist (primarily Muscovite and Quartz composition)

Graphite (Carbon (C)) — mineral

Graphite

Carbon (C)

Granite (Felsic Plutonic Rock) — igneous

Granite

Felsic Plutonic Rock

Limestone Gravel (Calcium Carbonate (CaCO3)) — sedimentary

Limestone Gravel

Calcium Carbonate (CaCO3)

Sandstone (Ferruginous) (Sandstone (clastic sedimentary rock, mainly SiO2 with iron oxide cement)) — sedimentary

Sandstone (Ferruginous)

Sandstone (clastic sedimentary rock, mainly SiO2 with iron oxide cement)

Colorless Quartz (Rhinestone) (Silicon Dioxide (SiO2)) — mineral

Colorless Quartz (Rhinestone)

Silicon Dioxide (SiO2)

Mosasaur Tooth Fossil (Mosasaurid vertebrate fossil (Hydroxyapatite)) — mineral

Mosasaur Tooth Fossil

Mosasaurid vertebrate fossil (Hydroxyapatite)

Mica Schist (Crystalline Schist (often containing Muscovite, Biotite, and Quartz)) — metamorphic

Mica Schist

Crystalline Schist (often containing Muscovite, Biotite, and Quartz)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Dyed Aura Quartz (Silicon Dioxide (SiO2) with metallic coating) — mineral

Dyed Aura Quartz

Silicon Dioxide (SiO2) with metallic coating

Druzy Quartz on Limestone (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Limestone

Silicon Dioxide (SiO2)

Granite (Felsic intrusive igneous rock (Quartz, Feldspar, Mica)) — igneous

Granite

Felsic intrusive igneous rock (Quartz, Feldspar, Mica)

Ferruginous Sandstone (with possible Epidote/Chlorite coloring) (Sandstone (SiO2 dominated with Fe2O3 staining)) — sedimentary

Ferruginous Sandstone (with possible Epidote/Chlorite coloring)

Sandstone (SiO2 dominated with Fe2O3 staining)

Granite (Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)) — igneous

Granite

Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)

Basalt (Amygdaloidal) (Amygdaloidal Basalt) — igneous

Basalt (Amygdaloidal)

Amygdaloidal Basalt

Fossil Shark Tooth (Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite) — fossil

Fossil Shark Tooth

Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite

Milky Quartz Pebble (Crystalline Silicon Dioxide (SiO2)) — mineral

Milky Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Lepidolite with Quartz (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) — mineral

Lepidolite with Quartz

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Schist with Biotite and Quartz (Biotite-Quartz Schist (Fe,Mg,Al silicate mix)) — metamorphic

Schist with Biotite and Quartz

Biotite-Quartz Schist (Fe,Mg,Al silicate mix)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Muscovite (Muscovite (KAl2(AlSi3O10)(OH)2)) — mineral

Muscovite

Muscovite (KAl2(AlSi3O10)(OH)2)

Lepidolite (Tumbled) (K(Li,Al)3(Al,Si,4O10)(F,OH)2) — mineral

Lepidolite (Tumbled)

K(Li,Al)3(Al,Si,4O10)(F,OH)2

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

Basalt with vesicles/amygdules

Basalt (containing volcanic glass and plagioclase)

White Topaz (Al2SiO4(F,OH)2) — mineral

White Topaz

Al2SiO4(F,OH)2

Mystic Topaz (Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating) — mineral

Mystic Topaz

Aluminum Silicate Fluoride Hydroxide (Al2SiO4(F,OH)2) with metallic film coating

Labradorite ((Ca,Na)(Al,Si)4O8 (Sodic-calcic plagioclase feldspar)) — mineral

Labradorite

(Ca,Na)(Al,Si)4O8 (Sodic-calcic plagioclase feldspar)

Pink Granite (Phaneritic Plutonic Rock (Felsic)) — igneous

Pink Granite

Phaneritic Plutonic Rock (Felsic)

Schist (Mica Schist (primarily Muscovite and Biotite)) — metamorphic

Schist

Mica Schist (primarily Muscovite and Biotite)

Aura Quartz (Titanium or Gold bonded Silicon Dioxide (SiO2)) — mineral

Aura Quartz

Titanium or Gold bonded Silicon Dioxide (SiO2)

Schist (Mica Schist) — metamorphic

Schist

Mica Schist

Quartz with Tourmaline inclusions (Silicon Dioxide (SiO2) with Tourmaline needles) — mineral

Quartz with Tourmaline inclusions

Silicon Dioxide (SiO2) with Tourmaline needles

Graphite (Graphite (Carbon, C)) — mineral

Graphite

Graphite (Carbon, C)

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Granite (phaneritic intrusive felsic igneous rock)) — igneous

Granite

Granite (phaneritic intrusive felsic igneous rock)

Iron Slag (Ferrous Slag (Silicate/Oxide mixture)) — industrial byproduct (anthropogenic)

Iron Slag

Ferrous Slag (Silicate/Oxide mixture)

industrial byproduct (anthropogenic)

Pink Granite (with Potassic Feldspar and Quartz) (Felsic Intrusive Igneous Rock (Granite)) — igneous

Pink Granite (with Potassic Feldspar and Quartz)

Felsic Intrusive Igneous Rock (Granite)

Basalt with Epidote (Mafic volcanic rock with Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))) — igneous

Basalt with Epidote

Mafic volcanic rock with Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Granite (Phaneritic plutonic rock (SiO2 + Al2O3)) — igneous

Granite

Phaneritic plutonic rock (SiO2 + Al2O3)

Granitoid (Granite/Gneiss mix) (Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)) — igneous/metamorphic

Granitoid (Granite/Gneiss mix)

Granite or Granitic Gneiss (Silicon dioxide SiO2 with Al, K, Na silicates)

igneous/metamorphic