Rock Identifier

Category

Igneous, Sedimentary, Metamorphic, And Mineral

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

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

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Quartz (SiO2)) — Mineral

Quartz

Quartz (SiO2)

Mineral
Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

mineral
Magnetite (Magnetite (Fe3O4)) — Mineral

Magnetite

Magnetite (Fe3O4)

Mineral
Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

mineral
Magnetite / Iron Ore (likely Hematite-Magnetite mix) (Magnetite (Fe3O4)) — mineral

Magnetite / Iron Ore (likely Hematite-Magnetite mix)

Magnetite (Fe3O4)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

mineral
Quartz (Milky/Rose Quartz variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Rose Quartz variety)

Silicon Dioxide (SiO2)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Clear Quartz

Silicon Dioxide (SiO2)

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

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Milky or White Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

mineral
Gneiss (Gneiss (Metamorphic rock)) — metamorphic

Gneiss

Gneiss (Metamorphic rock)

metamorphic
Mica-rich Schist fragment (Mica Schist) — metamorphic

Mica-rich Schist fragment

Mica Schist

metamorphic
River Cobble (Gneiss/Schist mix) (Foliated Metamorphic Rock (Gneissic/Schistose)) — metamorphic

River Cobble (Gneiss/Schist mix)

Foliated Metamorphic Rock (Gneissic/Schistose)

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

Blue Calcite

Calcium Carbonate (CaCO3)

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

Clear Quartz

Silicon Dioxide (SiO2)

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

Quartz / Clear Quartz

Silicon Dioxide (SiO2)

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Grey River Stone (Gneiss/Schist mix) (Foliated Metamorphic Rock (variable mineral formula)) — metamorphic

Grey River Stone (Gneiss/Schist mix)

Foliated Metamorphic Rock (variable mineral formula)

metamorphic
Calcite (Calcite (Calcium Carbonate - CaCO3)) — mineral

Calcite

Calcite (Calcium Carbonate - CaCO3)

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

Hematite

Iron(III) oxide (Fe2O3)

mineral
Pyrite in Matrix (likely Quartz or Schist matrix) (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix (likely Quartz or Schist matrix)

Iron Sulfide (FeS2)

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

Blue Apatite

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

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

Blue Calcite

Calcium Carbonate (CaCO3)

mineral
Quartz (Milky/Clear variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

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

Biotite Mica

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

mineral
Magnetite (Magnetite (Fe3O4)) — Mineral

Magnetite

Magnetite (Fe3O4)

Mineral
Quartz (Milky or Clear fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Clear fragment)

Silicon Dioxide (SiO2)

mineral
Quartz Crystal Fragment (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Crystal Fragment

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Milky/Crystalline fragment)

Silicon Dioxide (SiO2)

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

Clear Quartz

Silicon Dioxide (SiO2)

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

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

mineral
Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

mineral
Potassium Feldspar (Orthoclase) (KAlSi3O8) — mineral

Potassium Feldspar (Orthoclase)

KAlSi3O8

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Pyrite (Iron Pyrite (FeS2)) — mineral

Pyrite

Iron Pyrite (FeS2)

mineral