Rock Identifier

Category

Mineral Pseudomorph

Browse mineral pseudomorph specimens identified by the Rock Identifier community.

Learn about Mineral Pseudomorph in the encyclopedia

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Pineapple Opal

Pineapple Opal

Glauconite

Glauconite

Hutcheonite

Halite

Halite

Sperrylite

Sperrylite

Baddeleyite

Baddeleyite

Anatase

Anatase

Brookite

Brookite

Talc

Talc

Euxenite

Euxenite

Eltyubyuite

Buergerite

Buergerite

Graphic Granite / Pegmatite (Graphic Granite (Alkali Feldspar and Quartz)) — igneous

Graphic Granite / Pegmatite

Graphic Granite (Alkali Feldspar and Quartz)

igneous
Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

fossil
Olivine in Basalt (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) within Basalt (Rock)) — igneous

Olivine in Basalt (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) within Basalt (Rock)

igneous
Prehnite (Prehnite, Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Prehnite, Ca2Al(AlSi3O10)(OH)2

mineral
Limestone with Secondary Mineralization (Calcium Carbonate (CaCO3)) — sedimentary

Limestone with Secondary Mineralization

Calcium Carbonate (CaCO3)

sedimentary
Gneiss (Metamorphic Rock) (Gneiss) — metamorphic

Gneiss (Metamorphic Rock)

Gneiss

metamorphic
Quartz Pebble (with Mica or Iron staining) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (with Mica or Iron staining)

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Granite Pebble (Intrusive Igneous Rock) — igneous

Granite Pebble

Intrusive Igneous Rock

igneous
Granite / Diorite Xenolith or Contact (Felsic-Mafic Intrusive Igneous Rock) — igneous

Granite / Diorite Xenolith or Contact

Felsic-Mafic Intrusive Igneous Rock

igneous
Green Aventurine (Quartz (SiO2) with fuchsite inclusions) — mineral

Green Aventurine

Quartz (SiO2) with fuchsite inclusions

mineral
Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

sedimentary
Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

igneous
White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

mineral
Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

igneous
Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

mineral
Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — mineral

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

mineral
Granite (Phaneritic plutonic rock (SiO2 rich)) — igneous

Granite

Phaneritic plutonic rock (SiO2 rich)

igneous
Gravel or Crushed Stone (Fragmented Aggregate Stone) — sedimentary or igneous fragment

Gravel or Crushed Stone

Fragmented Aggregate Stone

sedimentary or igneous fragment
Granite or Pegmatite with Quartz and Feldspar (Granitoid) — igneous

Granite or Pegmatite with Quartz and Feldspar

Granitoid

igneous
Chakra Tumbled Stone Set (Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)) — Mineral

Chakra Tumbled Stone Set

Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)

Mineral
Pegmatite with Schorl (Black Tourmaline) and Mica (Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)) — igneous

Pegmatite with Schorl (Black Tourmaline) and Mica

Pegmatite (complex association of NaAlSi3O8, NaFe3Al6(BO3)3Si6O18(OH)4, and KAl2(AlSi3O10)(OH,F)2)

igneous
Granite and Mixed Landscape Gravel (Plutonic Igneous Rock / Weathered Alluvium) — igneous

Granite and Mixed Landscape Gravel

Plutonic Igneous Rock / Weathered Alluvium

igneous
Sandstone (Quartzose Sandstone (Sedimentary Rock)) — sedimentary

Sandstone

Quartzose Sandstone (Sedimentary Rock)

sedimentary
Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

igneous
Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

igneous
Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

igneous
Sandstone and Mixed Rock Assemblage (Clastic Sedimentary Rock / Quartz Arenite) — sedimentary

Sandstone and Mixed Rock Assemblage

Clastic Sedimentary Rock / Quartz Arenite

sedimentary
Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

igneous
Dyed Dragon Vein Agate (Silicon Dioxide (SiO2) with artificial pigment) — mineral

Dyed Dragon Vein Agate

Silicon Dioxide (SiO2) with artificial pigment

mineral
White Quartz Star (Silicon Dioxide (SiO2)) — mineral

White Quartz Star

Silicon Dioxide (SiO2)

mineral
Quartz (Milky or Yellow/Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Yellow/Citrine Quartz)

Silicon Dioxide (SiO2)

mineral
Prehnite (Prehnite (Ca2Al2Si3O10(OH)2)) — mineral

Prehnite

Prehnite (Ca2Al2Si3O10(OH)2)

mineral
Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

mineral
Quartz with Arsenopyrite (Silicon Dioxide (SiO2) with Iron Arsenic Sulfide (FeAsS)) — mineral

Quartz with Arsenopyrite

Silicon Dioxide (SiO2) with Iron Arsenic Sulfide (FeAsS)

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

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Biotite (Mica) (Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)) — mineral

Biotite (Mica)

Biotite group (K(Mg,Fe)3AlSi3O10(F,OH)2)

mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Vanadinite (Pb5(VO4)3Cl) — mineral

Vanadinite

Pb5(VO4)3Cl

mineral
Magnetic Sand Grain / Magnetite Pellet (Magnetite (Fe3O4)) — mineral

Magnetic Sand Grain / Magnetite Pellet

Magnetite (Fe3O4)

mineral
Diorite (Phaneritic intermediate plutonic rock) — Igneous

Diorite

Phaneritic intermediate plutonic rock

Igneous
Granodiorite (Granodiorite (containing Plagioclase, Quartz, and K-feldspar)) — igneous

Granodiorite

Granodiorite (containing Plagioclase, Quartz, and K-feldspar)

igneous