Rock Identifier

Category

Mineral (Silicate Variety)

Browse mineral (silicate variety) specimens identified by the Rock Identifier community.

Learn about Mineral (Silicate Variety) in the encyclopedia

Calc-Silicate Rock

Calc-Silicate Rock

Brookite

Brookite

Talc

Talc

Eltyubyuite

Eltyubyuite

Paracelsian

Paracelsian

Banalsite

Banalsite

Sodalite

Sodalite

Albite

Albite

Hemimorphite

Hemimorphite

Mica

Mica

Shattuckite

Shattuckite

Skarn

Skarn

Concretionary Sandstone (Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)) — sedimentary

Concretionary Sandstone

Clastic Sedimentary Rock (Sandstone with secondary mineral cementation)

Red Jasper (Jasper (a variety of Chalcedony, SiO₂ with iron oxide inclusions)) — Mineral

Red Jasper

Jasper (a variety of Chalcedony, SiO₂ with iron oxide inclusions)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

River Jasper (Silicon Dioxide (SiO2) with impurities) — sedimentary

River Jasper

Silicon Dioxide (SiO2) with impurities

Chert (Flint) (Chert (Silicon Dioxide, SiO2)) — sedimentary

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Greenstone / Graywacke (Metagraywacke (Chlorite-grade schistose rock)) — metamorphic

Greenstone / Graywacke

Metagraywacke (Chlorite-grade schistose rock)

Greenstone (Greenstone River Pebble) (Greenschist (metamorphosed mafic igneous rock)) — metamorphic

Greenstone (Greenstone River Pebble)

Greenschist (metamorphosed mafic igneous rock)

Chert (specifically Tan Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Tan Chert)

Chert (SiO2)

Chert (with Iron Staining) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Iron Staining)

Microcrystalline Quartz (SiO2)

Sandstone (likely Arkose or Quartz Sandstone) (Arenite (SiO2 principal component)) — sedimentary

Sandstone (likely Arkose or Quartz Sandstone)

Arenite (SiO2 principal component)

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

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite (River Cobble) (Quartzite (dominant mineral: Quatrz, SiO2)) — metamorphic

Quartzite (River Cobble)

Quartzite (dominant mineral: Quatrz, SiO2)

Pink Granite (Granite (High K-Feldspar variety)) — igneous

Pink Granite

Granite (High K-Feldspar variety)

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

Quartz (Milky/Iron-stained)

Silicon Dioxide (SiO2)

Sandstone (lithic/greywacke variety) (Arenite (composed primarily of SiO2 with various lithic fragments)) — sedimentary

Sandstone (lithic/greywacke variety)

Arenite (composed primarily of SiO2 with various lithic fragments)

Sandstone (Quartz-rich) (Arenite (SiO2 based clastic rock)) — sedimentary

Sandstone (Quartz-rich)

Arenite (SiO2 based clastic rock)

Quartz (Citrine variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine variety)

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron inclusions

Blue Moss Agate / Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Moss Agate / Blue Chalcedony

Silicon Dioxide (SiO2)

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

Labradorite

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

Chert (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Quartz, SiO2)

Blue Calcite (Calcium Carbonate (CaCO3)) — mineral

Blue Calcite

Calcium Carbonate (CaCO3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

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)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Dendritic Moss Agate (Chalcedony (Silicon Dioxide, SiO2) with inclusions) — mineral

Dendritic Moss Agate

Chalcedony (Silicon Dioxide, SiO2) with inclusions

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Water-Worn Pebble) (Silicon Dioxide (SiO2)) — mineral

Milky Quartz (Water-Worn Pebble)

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Water-worn Pebble) (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz (Water-worn Pebble)

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Peach Moonstone (Orthoclase Feldspar (KAlSi3O8)) — mineral

Peach Moonstone

Orthoclase Feldspar (KAlSi3O8)

Specular Hematite (Specularite) (Hematite (Iron(III) oxide) - Fe2O3) — mineral

Specular Hematite (Specularite)

Hematite (Iron(III) oxide) - Fe2O3

Blue Chalcedony (Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Silicon Dioxide (SiO2)

Snowflake Obsidian (Spherulitic Obsidian (SiO2 + impurities)) — igneous

Snowflake Obsidian

Spherulitic Obsidian (SiO2 + impurities)

Fluorite (Calcium Fluoride (CaF2)) — Mineral

Fluorite

Calcium Fluoride (CaF2)

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

African Turquoise (African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)) — sedimentary

African Turquoise

African Turquoise (a trade name for Jasper, a variety of Chalcedony: SiO2)