Rock Identifier

Category

Igneous, Sedimentary, Metamorphic, And Mineral

Browse igneous, sedimentary, metamorphic, and mineral specimens identified by the Rock Identifier community.

Learn about Igneous, Sedimentary, Metamorphic, And Mineral in the encyclopedia

Carbonatite

Coal

Conglomerate

Metabasalt

Cordierite Hornfels

Cordierite Hornfels

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Eulysite

Migmatite

Breccia

Hutcheonite

Halite

Quartz (Small Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Raw Chunk) (Silicon Dioxide (SiO2)) — mineral

Quartz (Raw Chunk)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Blue Apatite

Fluoroapatite (Ca5(PO4)3F)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Mixed Rock Collection (Pebbles and Stones) (Various geological specimens) — igneous, sedimentary, and metamorphic

Mixed Rock Collection (Pebbles and Stones)

Various geological specimens

igneous, sedimentary, and metamorphic

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

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

Quartz (Granular)

Silicon Dioxide (SiO2)

Rough amber-colored quartz or calcite fragment (Likely quartz (SiO₂) or calcite (CaCO₃); exact identification requires testing) — mineral

Rough amber-colored quartz or calcite fragment

Likely quartz (SiO₂) or calcite (CaCO₃); exact identification requires testing

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Magnetite (Lodestone) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone)

Magnetite (Fe3O4)

Orange Calcite (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Banded gneiss (Foliated gneiss, likely quartz–feldspar–mica gneiss) — metamorphic

Banded gneiss

Foliated gneiss, likely quartz–feldspar–mica gneiss

Clear Quartz (Faceted) (Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Faceted)

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Quartz (Milky/Crystalline fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Crystalline fragment)

Silicon Dioxide (SiO2)

Yellow chalcedony or quartz fragment (Microcrystalline quartz, SiO₂ (tentative; possibly iron-stained chalcedony)) — mineral

Yellow chalcedony or quartz fragment

Microcrystalline quartz, SiO₂ (tentative; possibly iron-stained chalcedony)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Magnetite (Magnetite (Iron(II,III) oxide, Fe3O4)) — mineral

Magnetite

Magnetite (Iron(II,III) oxide, Fe3O4)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Gneiss (Metamorphic Gneiss) — metamorphic

Gneiss

Metamorphic Gneiss

Tumbled Quartz (Silicon Dioxide (SiO2)) — mineral

Tumbled Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Silicon dioxide (SiO2)) — mineral

Clear Quartz

Silicon dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Quartz (Silicon Dioxide - SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Quartz (SiO2 (Silicon Dioxide)) — mineral

Quartz

SiO2 (Silicon Dioxide)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Yellow Quartz (Citrine Quartz / Milky Quartz)

Silicon Dioxide (SiO2)