Rock Identifier

Category

Igneous And Fossil

Browse igneous and fossil specimens identified by the Rock Identifier community.

Learn about Igneous And Fossil in the encyclopedia

Fossil Opal

Bone Opal

Turritella Jasper

Amber

Fossiliferous Limestone

Fossiliferous Limestone

Turritella Agate

Turritella Agate

Petrified Wood

Carbonatite

Diatomite

Guano

Jet

Diatomaceous Earth

Granite (Granite (composed primarily of Quartz, Feldspar, and Mica/Amphibole)) — igneous

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica/Amphibole)

Muscovite Mica (KAl2(AlSi3O10)(F,OH)2) — mineral

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

Granite (Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)) — igneous

Granite

Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Greenstone / Greenschist (Greenschist (composed of Chlorite, Epidote, Actinolite)) — metamorphic

Greenstone / Greenschist

Greenschist (composed of Chlorite, Epidote, Actinolite)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Granite (Phaneritic plutonic igneous rock (typically 20% to 60% quartz by volume)) — igneous

Granite

Phaneritic plutonic igneous rock (typically 20% to 60% quartz by volume)

Black Granite (Basalt or Gabbro) (Mafic Igneous Rock (primarily Plagioclase and Pyroxene)) — igneous

Black Granite (Basalt or Gabbro)

Mafic Igneous Rock (primarily Plagioclase and Pyroxene)

Dalmatian Stone (Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite) — igneous

Dalmatian Stone

Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite

Dalmatian Jasper (Dyed Blue) (Peralkaline Rock with Arfvedsonite and Blue Dye) — igneous

Dalmatian Jasper (Dyed Blue)

Peralkaline Rock with Arfvedsonite and Blue Dye

Granite (Granite (Felsic Intrusive)) — igneous

Granite

Granite (Felsic Intrusive)

Granite (Phaneritic Felsic Intrusive Igneous Rock) — igneous

Granite

Phaneritic Felsic Intrusive Igneous Rock

Dalmatian Stone (Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)) — igneous

Dalmatian Stone

Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)

Granite (Granite) — igneous

Granite

Granite

Granite (Phaneritic plutonic felsic rock) — igneous

Granite

Phaneritic plutonic felsic rock

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Granite (Granite (Phaneritic Igneous Rock)) — igneous

Granite

Granite (Phaneritic Igneous Rock)

Yellow Quartz (Golden Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Golden Quartz)

Silicon Dioxide (SiO2)

Rough Apatite in Matrix (Fluorapatite / Chlorapatite / Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))) — mineral

Rough Apatite in Matrix

Fluorapatite / Chlorapatite / Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))

Carnelian / Agate (Silicon Dioxide (SiO2) - Chalcedony) — mineral

Carnelian / Agate

Silicon Dioxide (SiO2) - Chalcedony

Quartz with Iron Oxide Staining (Silicon Dioxide (SiO2)) — mineral

Quartz with Iron Oxide Staining

Silicon Dioxide (SiO2)

Faceted Quartz or Cubic Zirconia (SiO2 (Quartz) or ZrO2 (Cubic Zirconia)) — gemstone

Faceted Quartz or Cubic Zirconia

SiO2 (Quartz) or ZrO2 (Cubic Zirconia)

Unidentified Dark Mineral or Rock (Indeterminate (Likely Silicon Dioxide or Carbon-based)) — mineral

Unidentified Dark Mineral or Rock

Indeterminate (Likely Silicon Dioxide or Carbon-based)

Citrine Quartz (Silicon Dioxide (SiO2) with iron impurities) — gemstone

Citrine Quartz

Silicon Dioxide (SiO2) with iron impurities

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

Quartz (Raw Chunk)

Silicon Dioxide (SiO2)

Muscovite Mica (KAl2(AlSi3O10)(OH)2) — mineral

Muscovite Mica

KAl2(AlSi3O10)(OH)2

Pyrite (Fools Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fools Gold)

Iron Disulfide (FeS2)

Labradorite (Raw) ((Ca, Na)(Al, Si)4O8) — mineral

Labradorite (Raw)

(Ca, Na)(Al, Si)4O8

Carnelian (Chalcedony) (Silicon Dioxide (SiO2)) — mineral

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

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

Quartz (Milky/Snow)

Silicon Dioxide (SiO2)

Quartz with Muscovite Mica (Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide Fluoride (KAl2(AlSi3O10)(F,OH)2)) — mineral

Quartz with Muscovite Mica

Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide Fluoride (KAl2(AlSi3O10)(F,OH)2)

Rose Quartz (Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese) — mineral

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

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

Blue Apatite

Fluoroapatite (Ca5(PO4)3F)

Blue Apatite (Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)) — mineral

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)

Yellow Agate (Silicon Dioxide (SiO2)) — mineral

Yellow Agate

Silicon Dioxide (SiO2)

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Hypersthene (Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)) — mineral

Hypersthene

Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)

Ruby Zoisite (Anyolite (Calcium aluminium silicate with Chromium/Corundum inclusions)) — metamorphic

Ruby Zoisite

Anyolite (Calcium aluminium silicate with Chromium/Corundum inclusions)

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

Hematite

Iron(III) oxide (Fe2O3)

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

Biotite (Black Mica)

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

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Sodalite (Na8(Al6Si6O24)Cl2) — mineral

Sodalite

Na8(Al6Si6O24)Cl2

Muscovite Mica (Muscovite (KAl2(AlSi3O10)(OH)2)) — mineral

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)