Rock Identifier

Category

Sedimentary To Metamorphic

Browse sedimentary to metamorphic specimens identified by the Rock Identifier community.

Learn about Sedimentary To Metamorphic in the encyclopedia

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Metabasalt

Eulysite

Breccia

Anthracite

Ironstone

Metaquartzite

Slate

Marble

Hornfels

Metarhyolite

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Gneiss (Metamorphic Gneiss) — metamorphic

Gneiss

Metamorphic Gneiss

Quartz Crystal Cluster / Quartzite (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal Cluster / Quartzite

Silicon Dioxide (SiO2)

Quartz (Orange/Pink variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Orange/Pink variety)

Silicon Dioxide (SiO2)

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)

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

Clear Quartz (Faceted)

Silicon Dioxide (SiO2)

Clear Quartz (Cut/Faceted Gemstone) (Silicon Dioxide (SiO2)) — gemstone

Clear Quartz (Cut/Faceted Gemstone)

Silicon Dioxide (SiO2)

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

Yellow Quartz (Citrine Quartz / Milky Quartz)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (Smoky Quartz / Calcite) (SiO2 (Silicon Dioxide)) — mineral

Quartz (Smoky Quartz / Calcite)

SiO2 (Silicon Dioxide)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Quartz Boulder (Silicon Dioxide (SiO2)) — mineral

Quartz Boulder

Silicon Dioxide (SiO2)

Mica (Muscovite or Biotite) (Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)) — mineral

Mica (Muscovite or Biotite)

Sheet silicate mineral group (e.g., KAl2(AlSi3O10)(F,OH)2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

Galena with Pyrite (Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)) — mineral

Galena with Pyrite

Lead Sulfide (PbS) associated with Iron Sulfide (FeS2)

Quartz with Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz with Matrix

Silicon Dioxide (SiO2)

Tumbled Quartz (Silicon Dioxide (SiO2)) — mineral

Tumbled Quartz

Silicon Dioxide (SiO2)

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

Rose Quartz

Silicon Dioxide (Quartz), SiO2

Common Opal (Hydrated amorphous silica (SiO2·nH2O)) — mineral

Common Opal

Hydrated amorphous silica (SiO2·nH2O)

Blue Quartz (Silicon Dioxide (SiO2) with inclusions) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Quartz (SiO2 (Silicon Dioxide)) — mineral

Quartz

SiO2 (Silicon Dioxide)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Tiger's Eye, Hematite, and Black Obsidian Bracelet (SiO2 (Tiger's Eye), Fe2O3 (Hematite), and 70-75% SiO2 (Obsidian)) — mineral

Tiger's Eye, Hematite, and Black Obsidian Bracelet

SiO2 (Tiger's Eye), Fe2O3 (Hematite), and 70-75% SiO2 (Obsidian)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Kyanite (Kyanite (Al2SiO5)) — Mineral

Kyanite

Kyanite (Al2SiO5)

Magnetite / Hematite (Iron Ore) (Magnetite (Fe3O4) or Hematite (Fe2O3)) — mineral

Magnetite / Hematite (Iron Ore)

Magnetite (Fe3O4) or Hematite (Fe2O3)

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

Rhodonite

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

Phyllite (Phyllite (Intermediate grade metamorphic rock)) — metamorphic

Phyllite

Phyllite (Intermediate grade metamorphic rock)

Small quartz-rich pebble or rock fragment (Quartz (silicon dioxide, SiO₂), possibly with iron-oxide staining or host-rock inclusions) — mineral

Small quartz-rich pebble or rock fragment

Quartz (silicon dioxide, SiO₂), possibly with iron-oxide staining or host-rock inclusions

Gneiss (Feldspathic biotite gneiss; a high-grade metamorphic rock composed mainly of quartz, feldspar, and mica) — metamorphic

Gneiss

Feldspathic biotite gneiss; a high-grade metamorphic rock composed mainly of quartz, feldspar, and mica

Yellow Calcite (Calcium Carbonate (CaCO3)) — mineral

Yellow Calcite

Calcium Carbonate (CaCO3)

Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Quartz Crystal

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)

White Quartz (Silicon Dioxide (SiO2)) — mineral

White Quartz

Silicon Dioxide (SiO2)