Rock Identifier

Category

Mineral (Processed Alloy)

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

Green Apophyllite (Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O) — mineral

Green Apophyllite

Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O

Fossil Shark Tooth (Chondrichthyes dentition (Fossilized Tooth)) — fossil

Fossil Shark Tooth

Chondrichthyes dentition (Fossilized Tooth)

Granite (Phaneritic Igneous Rock (Granite)) — igneous

Granite

Phaneritic Igneous Rock (Granite)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Banded Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Orbicular Granite (Orbicular Granitoid) — igneous

Orbicular Granite

Orbicular Granitoid

Brecciated Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Brecciated Jasper

Microcrystalline Quartz (SiO2)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Milky Quartz with Chlorite inclusion (Silicon Dioxide (SiO2) with Chlorite group inclusions) — mineral

Milky Quartz with Chlorite inclusion

Silicon Dioxide (SiO2) with Chlorite group inclusions

Granite (Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)

River Quartz Cobble (Silicon Dioxide (SiO2)) — mineral

River Quartz Cobble

Silicon Dioxide (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

K-Feldspar (Potassium Feldspar) (Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8) — mineral

K-Feldspar (Potassium Feldspar)

Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8

Yellow Aventurine (specifically a carved crescent moon) (Silicon Dioxide (SiO2) with inclusions) — mineral

Yellow Aventurine (specifically a carved crescent moon)

Silicon Dioxide (SiO2) with inclusions

Red Painted Rock (Artificial Coated Lithic Fragment) — sedimentary

Red Painted Rock

Artificial Coated Lithic Fragment

Porphyritic Basalt or Porphyritic Andesite (Porphyritic volcanic rock) — igneous

Porphyritic Basalt or Porphyritic Andesite

Porphyritic volcanic rock

Quartz in Matrix (possibly Basalt or Siltstone host) (Silicon Dioxide (SiO2) in Host Rock) — mineral

Quartz in Matrix (possibly Basalt or Siltstone host)

Silicon Dioxide (SiO2) in Host Rock

Quartz Cluster (Silicon Dioxide (SiO2)) — mineral

Quartz Cluster

Silicon Dioxide (SiO2)

Jasper (Multi-color Chert) (Silicon dioxide (SiO2)) — sedimentary

Jasper (Multi-color Chert)

Silicon dioxide (SiO2)

Brecciated Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Brecciated Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded Agate (Cryptocrystalline Silica (SiO2)) — mineral

Banded Agate

Cryptocrystalline Silica (SiO2)

Unidentifiable Specimen (Undetermined) — Unknown

Unidentifiable Specimen

Undetermined

Red Jasper (Silicon Dioxide with Iron inclusions (SiO2 + Fe2O3)) — sedimentary

Red Jasper

Silicon Dioxide with Iron inclusions (SiO2 + Fe2O3)

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with Iron inclusions)) — Mineral

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with Iron inclusions)

Corundum (Sapphire in Matrix) (Aluminum Oxide (Al2O3)) — mineral

Corundum (Sapphire in Matrix)

Aluminum Oxide (Al2O3)

Tumbled Quartz (Peach Quartz / Red Quartz) (Silicon Dioxide (SiO2)) — mineral

Tumbled Quartz (Peach Quartz / Red Quartz)

Silicon Dioxide (SiO2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Orange Calcite (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite

Calcite (Calcium Carbonate, CaCO3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

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

Rhodonite

Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3

Lapis Lazuli (Sodalite-rich metamorphic rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2) — metamorphic

Lapis Lazuli

Sodalite-rich metamorphic rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Red Jasper (Silicon Dioxide (SiO2) with Hematite inclusions) — mineral

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Greenschist (containing Epidote and Quartz) (Greenschist (Epidote-Chlorite-Actinolite Schist)) — metamorphic

Greenschist (containing Epidote and Quartz)

Greenschist (Epidote-Chlorite-Actinolite Schist)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Peacock Ore (Bornite (Cu5FeS4)) — mineral

Peacock Ore

Bornite (Cu5FeS4)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)

Gold Ore in Quartz (Native Gold (Au) in Quartz (SiO2) matrix) — mineral

Gold Ore in Quartz

Native Gold (Au) in Quartz (SiO2) matrix

Gray Agate (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Gray Agate

Chalcedony (Silicon Dioxide, SiO2)

Calcite in Matrix (Calcium Carbonate (CaCO3)) — mineral

Calcite in Matrix

Calcium Carbonate (CaCO3)

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)