Rock Identifier

Category

Mineral (Pseudomorph)

Browse mineral (pseudomorph) specimens identified by the Rock Identifier community.

Learn about Mineral (Pseudomorph) in the encyclopedia

Pineapple Opal

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Blue Tiger's Eye (Silicon Dioxide (SiO2) with Crocidolite inclusions) — Mineral (Pseudomorph)

Blue Tiger's Eye

Silicon Dioxide (SiO2) with Crocidolite inclusions

Mineral (Pseudomorph)

Limonite after Pyrite (Prophecy Stone) (Limonite (FeO(OH)·nH2O) replacing Pyrite (FeS2)) — Mineral pseudomorph

Limonite after Pyrite (Prophecy Stone)

Limonite (FeO(OH)·nH2O) replacing Pyrite (FeS2)

Mineral pseudomorph

Limonite pseudomorph after pyrite (Goethite / Limonite pseudomorph after Pyrite (Fe3+O(OH) replacing FeS2)) — mineral

Limonite pseudomorph after pyrite

Goethite / Limonite pseudomorph after Pyrite (Fe3+O(OH) replacing FeS2)

Tiger's Eye (Silicon Dioxide (Quartz with crocidolite inclusions), SiO2) — gemstone

Tiger's Eye

Silicon Dioxide (Quartz with crocidolite inclusions), SiO2

Limonite pseudomorph after Pyrite (Goethite/Limonite FeO(OH)·nH2O) — mineral

Limonite pseudomorph after Pyrite

Goethite/Limonite FeO(OH)·nH2O

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Tiger's Eye (Silicon Dioxide (Quartz pseudomorph after crocidolite) - SiO2) — mineral

Tiger's Eye

Silicon Dioxide (Quartz pseudomorph after crocidolite) - SiO2

Tiger's Eye (Silicon dioxide with fibrous inclusions (SiO2)) — mineral

Tiger's Eye

Silicon dioxide with fibrous inclusions (SiO2)

Tiger's Eye (Silicon Dioxide with Crocidolite inclusions (SiO2)) — mineral

Tiger's Eye

Silicon Dioxide with Crocidolite inclusions (SiO2)

Tiger's Eye (Tiger's Eye (SiO2 with crocidolite inclusions)) — mineral

Tiger's Eye

Tiger's Eye (SiO2 with crocidolite inclusions)

Goethite pseudomorph after Pyrite (Goethite (FeO(OH)) pseudomorph after Pyrite (FeS2)) — mineral

Goethite pseudomorph after Pyrite

Goethite (FeO(OH)) pseudomorph after Pyrite (FeS2)

Tiger's Eye (Quartz with riebeckite inclusions (SiO2)) — mineral

Tiger's Eye

Quartz with riebeckite inclusions (SiO2)

Limonite (often after Pyrite) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (often after Pyrite)

Limonite (FeO(OH)·nH2O)

Azurite in Gossan (Azurite (Cu3(CO3)2(OH)2) in Limonite/Goethite matrix) — mineral

Azurite in Gossan

Azurite (Cu3(CO3)2(OH)2) in Limonite/Goethite matrix

Pietersite (Silicolite (brecciated tiger's eye with hawk's eye)) — Mineral

Pietersite

Silicolite (brecciated tiger's eye with hawk's eye)

Pyrite (Pseudomorph) (Iron Sulfide (FeS2)) — mineral

Pyrite (Pseudomorph)

Iron Sulfide (FeS2)

Limonite/Goethite Nodule (Iron Oxyhydroxide (primarily FeO(OH)·nH2O)) — mineral

Limonite/Goethite Nodule

Iron Oxyhydroxide (primarily FeO(OH)·nH2O)

Tiger's Eye (Silicon Dioxide (Quartz pseudomorph after crocidolite)) — gemstone

Tiger's Eye

Silicon Dioxide (Quartz pseudomorph after crocidolite)

Limonite (Ironstone) (Limonite (mixture of hydrated iron(III) oxide-hydroxides)) — mineral

Limonite (Ironstone)

Limonite (mixture of hydrated iron(III) oxide-hydroxides)

Tiger's Eye (Silicon dioxide (SiO2) with crocidolite inclusions) — Mineral

Tiger's Eye

Silicon dioxide (SiO2) with crocidolite inclusions

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)

Druzy Chalcedony/Quartz on Fluorite core (Silicon Dioxide (SiO2) on Calcium Fluoride (CaF2)) — mineral

Druzy Chalcedony/Quartz on Fluorite core

Silicon Dioxide (SiO2) on Calcium Fluoride (CaF2)

Tiger's Eye (Fibrous Quartz (SiO2) with iron inclusions) — mineral

Tiger's Eye

Fibrous Quartz (SiO2) with iron inclusions

Limonite pseudo-concretion (Ironstone) (Limonite (FeO(OH)·nH2O) / Goethite) — sedimentary

Limonite pseudo-concretion (Ironstone)

Limonite (FeO(OH)·nH2O) / Goethite

Tiger's Eye (Quartz pseudomorph after crocidolite (SiO2)) — gemstone

Tiger's Eye

Quartz pseudomorph after crocidolite (SiO2)

Tiger's Eye (Pseudomorph of Quartz (SiO2) after Crocidolite) — mineral

Tiger's Eye

Pseudomorph of Quartz (SiO2) after Crocidolite

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Tiger's Eye (Silicified Riebeckite (SiO2 with inclusions)) — metamorphic

Tiger's Eye

Silicified Riebeckite (SiO2 with inclusions)

Mixed Gemstone Collection (SiO2 (Quartz varieties) and Biogenic CaCO3 (Nacre)) — mineral

Mixed Gemstone Collection

SiO2 (Quartz varieties) and Biogenic CaCO3 (Nacre)

Tiger's Eye (Silicon Dioxide (Quartz pseudomorph after crocidolite), $SiO_2$) — mineral

Tiger's Eye

Silicon Dioxide (Quartz pseudomorph after crocidolite), $SiO_2$

Tiger's Eye (Quartz Pseudomorph (SiO2 with inclusions of Crocidolite)) — mineral

Tiger's Eye

Quartz Pseudomorph (SiO2 with inclusions of Crocidolite)

Limonite/Hematite Ironstone (Goethite-rich Ironstone (FeO(OH) · nH2O)) — sedimentary

Limonite/Hematite Ironstone

Goethite-rich Ironstone (FeO(OH) · nH2O)

Limonite / Goethite (Ironstone Nodule) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite / Goethite (Ironstone Nodule)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Limonite / Ironstone Nodule (Hydrated Iron Oxide (FeO(OH)·nH2O)) — sedimentary

Limonite / Ironstone Nodule

Hydrated Iron Oxide (FeO(OH)·nH2O)

Limonite (Iron Ore) (FeO(OH)·nH2O) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2)) — mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Tiger's Eye (Silicon Dioxide (SiO2) with fibrous inclusions) — mineral

Tiger's Eye

Silicon Dioxide (SiO2) with fibrous inclusions

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Tiger's Eye (Pseudomorph of quartz after crocidolite (SiO2)) — metamorphic

Tiger's Eye

Pseudomorph of quartz after crocidolite (SiO2)

Blue Tiger's Eye (Silicified Riebeckite (SiO2)) — mineral

Blue Tiger's Eye

Silicified Riebeckite (SiO2)

Limonite (Iron Ore) (Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)) — sedimentary

Limonite (Iron Ore)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Tiger's Eye (Silicon Dioxide (SiO2) with Limonite/Goethite inclusions) — mineral

Tiger's Eye

Silicon Dioxide (SiO2) with Limonite/Goethite inclusions