Rock Identifier

Category

Mineral Like Byproduct

Browse mineral like byproduct specimens identified by the Rock Identifier community.

Learn about Mineral Like Byproduct in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Garden Quartz

Sagenite Agate

Ribbon Jasper

Leopard Skin Jasper

Leopard Skin Jasper

Flower Jasper

Dendritic Opal

Feather Jasper

Starburst Agate

Plume Agate

Feather Agate

Landscape Opal

Gneiss (High-grade regional metamorphic rock (Foliated)) — metamorphic

Gneiss

High-grade regional metamorphic rock (Foliated)

Jasper or Agate (Silicon dioxide (SiO2)) — Mineral

Jasper or Agate

Silicon dioxide (SiO2)

Black Obsidian (Extrusive Volcanic Glass (primarily SiO2)) — igneous

Black Obsidian

Extrusive Volcanic Glass (primarily SiO2)

Bauxite (Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)) — sedimentary

Bauxite

Alumina ore (Mixture of Gibbsite, Boehmite, and Diaspore)

Fossilized Blastoid (Sea Bud) (Pentremites sp. (Echinodermata, Blastoidea)) — fossil

Fossilized Blastoid (Sea Bud)

Pentremites sp. (Echinodermata, Blastoidea)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Note: This is a Man-Made Object (Costume/Prop Patch) (Synthetic fiber and pigments (Cellulose/Plastic-based composite)) — Non-geological

Note: This is a Man-Made Object (Costume/Prop Patch)

Synthetic fiber and pigments (Cellulose/Plastic-based composite)

Banded Agate (Chert/Chaldcedony) (Silicon Dioxide (SiO₂)) — mineral

Banded Agate (Chert/Chaldcedony)

Silicon Dioxide (SiO₂)

Flower Agate (Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2) — mineral

Flower Agate

Chalcedony (cryptocrystalline Quartz) with Spherulite inclusions; SiO2

Red Sandstone (Arenite with Iron Oxide (Hematite) cement) — sedimentary

Red Sandstone

Arenite with Iron Oxide (Hematite) cement

Jasper with Quartz Vein (Silicon Dioxide (SiO2)) — sedimentary

Jasper with Quartz Vein

Silicon Dioxide (SiO2)

Banded Gneiss (Gneiss (Metamorphic rock composed of feldspar, quartz, and mica)) — metamorphic

Banded Gneiss

Gneiss (Metamorphic rock composed of feldspar, quartz, and mica)

Green Aventurine (Silicon Dioxide (SiO2) with inclusions of Fuchsite) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Green Aventurine (Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)

Iron-stained Quartz (Silicon Dioxide with Limonite (SiO2 + FeO(OH)·nH2O)) — mineral

Iron-stained Quartz

Silicon Dioxide with Limonite (SiO2 + FeO(OH)·nH2O)

Fossil / Permineralized Bone (Tyrannosaurus rex fossil (Hydroxylapatite replaced by various minerals)) — sedimentary

Fossil / Permineralized Bone

Tyrannosaurus rex fossil (Hydroxylapatite replaced by various minerals)

Rutilated Quartz (Quartz (SiO2) with Rutile (TiO2) inclusions) — Mineral

Rutilated Quartz

Quartz (SiO2) with Rutile (TiO2) inclusions

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Goethite (Goethite (FeO(OH))) — mineral

Goethite

Goethite (FeO(OH))

Agatized Dinosaur Bone (Permineralized Dinosaur Bone (Silicified/Agatized Bone)) — fossil

Agatized Dinosaur Bone

Permineralized Dinosaur Bone (Silicified/Agatized Bone)

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

Quartz (Milky Quartz / Quartz Crystal)

Silicon Dioxide (SiO2)

Blue Apatite (Apatite - Ca5(PO4)3(F,Cl,OH) (Calcium phosphate with Fluorine, Chlorine, or Hydroxyl)) — mineral

Blue Apatite

Apatite - Ca5(PO4)3(F,Cl,OH) (Calcium phosphate with Fluorine, Chlorine, or Hydroxyl)

Obsidian with Spherulitic Devitrification (Snowflake Obsidian/Mahogany related) (Volcanic Glass (70% or more SiO2)) — igneous

Obsidian with Spherulitic Devitrification (Snowflake Obsidian/Mahogany related)

Volcanic Glass (70% or more SiO2)

Malachite (Malachite (Copper Carbonate Hydroxide) - Cu2CO3(OH)2) — Mineral

Malachite

Malachite (Copper Carbonate Hydroxide) - Cu2CO3(OH)2

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — fossil

Petrified Wood

Silicified Wood (SiO2)

Pink Dyed Agate (Chalcedony (SiO2) with artificial dyes) — mineral

Pink Dyed Agate

Chalcedony (SiO2) with artificial dyes

Rutile in Quartz (Rutilated Quartz) (SiO2 with TiO2 inclusions) — Mineral

Rutile in Quartz (Rutilated Quartz)

SiO2 with TiO2 inclusions

Black Obsidian (Obsidian (Volcanic Glass)) — igneous

Black Obsidian

Obsidian (Volcanic Glass)

Blue Apatite (Apatite - Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Apatite - Ca5(PO4)3(F,Cl,OH)

Blue Apatite (Apatite group (Ca5(PO4)3(F,Cl,OH))) — mineral

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Rhodonite ((Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

(Mn,Fe,Mg,Ca)SiO3

River Cobble (Quartz-rich Sandstone) (Arenite with iron oxide staining) — sedimentary

River Cobble (Quartz-rich Sandstone)

Arenite with iron oxide staining

Limonite (Ironstone Concretion) (Limonite (FeO(OH)·nH2O)) — sedimentary

Limonite (Ironstone Concretion)

Limonite (FeO(OH)·nH2O)

Sandstone (Sandstone (clastic sedimentary rock)) — sedimentary

Sandstone

Sandstone (clastic sedimentary rock)

Malachite (Copper carbonate hydroxide, Cu2CO3(OH)2) — mineral

Malachite

Copper carbonate hydroxide, Cu2CO3(OH)2

Concretion with Geode Cavity (Ferruginous Sandstone Concretion with Quartz Center) — sedimentary

Concretion with Geode Cavity

Ferruginous Sandstone Concretion with Quartz Center

Ferruginous Quartz (Iron-Stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Ferruginous Quartz (Iron-Stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Greenstone / Epidosite (Epidosite (primary minerals: Epidote and Quartz)) — metamorphic

Greenstone / Epidosite

Epidosite (primary minerals: Epidote and Quartz)

Limonite (Limonite (Hydrous iron oxides, FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrous iron oxides, FeO(OH)·nH2O)