Rock Identifier

Category

Mineralological Variety

Browse mineralological variety specimens identified by the Rock Identifier community.

Learn about Mineralological Variety in the encyclopedia

Albite

Flame Obsidian

Lace Obsidian

Oligoclase

Brookite

Sodalite

Syenite

Microcline

Leopard Obsidian

Orthoclase

Starry Night Obsidian

Pumpkin Obsidian

Pumpkin Obsidian

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Tumbled jasper (likely picture jasper) (Jasper, an opaque microcrystalline variety of quartz (SiO₂); exact variety uncertain from the photo) — mineral

Tumbled jasper (likely picture jasper)

Jasper, an opaque microcrystalline variety of quartz (SiO₂); exact variety uncertain from the photo

Agate (Beaded Jewelry) (Silicon Dioxide (SiO2)) — gemstone

Agate (Beaded Jewelry)

Silicon Dioxide (SiO2)

Banded Agate (Agate (Silicon Dioxide - SiO2)) — mineral

Banded Agate

Agate (Silicon Dioxide - SiO2)

Microcline Feldspar (KAlSi3O8) — mineral

Microcline Feldspar

KAlSi3O8

Orthoclase Feldspar (KAlSi3O8 (Potassium aluminum silicate)) — mineral

Orthoclase Feldspar

KAlSi3O8 (Potassium aluminum silicate)

Brown chalcedony (likely carnelian/agate) (Microcrystalline quartz, SiO₂; chalcedony variety) — mineral

Brown chalcedony (likely carnelian/agate)

Microcrystalline quartz, SiO₂; chalcedony variety

Tumbled pink chalcedony (likely pink agate) (Chalcedony, microcrystalline SiO₂; variety of quartz) — mineral

Tumbled pink chalcedony (likely pink agate)

Chalcedony, microcrystalline SiO₂; variety of quartz

Polished banded agate (Microcrystalline quartz (chalcedony), SiO₂) — mineral

Polished banded agate

Microcrystalline quartz (chalcedony), SiO₂

Banded Agate (Silk Agate or Maligano Jasper variant) (Silicon Dioxide (SiO2)) — sedimentary

Banded Agate (Silk Agate or Maligano Jasper variant)

Silicon Dioxide (SiO2)

Sandstone (likely Greywacke or Lithic Sandstone) (Arenite / Wacke) — sedimentary

Sandstone (likely Greywacke or Lithic Sandstone)

Arenite / Wacke

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Red-brown jasper pebble (Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides) — mineral

Red-brown jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Smoky quartz crystal (Quartz (SiO₂), likely smoky variety) — mineral

Smoky quartz crystal

Quartz (SiO₂), likely smoky variety

Chert (Jasper/Agate variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Tumbled jasper (likely ocean or picture jasper) (Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and other mineral impurities) — mineral

Tumbled jasper (likely ocean or picture jasper)

Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide and other mineral impurities

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

Brown Jasper (Tumbled)

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Chert

Chert (Microcrystalline Quartz, SiO2)

Corundum (Sapphire / Raw Sapphire) (Aluminum Oxide (Al2O3)) — gemstone

Corundum (Sapphire / Raw Sapphire)

Aluminum Oxide (Al2O3)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert / Flint Pebble (Microcrystalline quartz (SiO2)) — sedimentary

Chert / Flint Pebble

Microcrystalline quartz (SiO2)

Ferruginous Quartz (Silicon Dioxide (SiO2) with Hematite/Limonite inclusions) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite inclusions

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Corundum (Sapphire in Host Rock) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Corundum (Sapphire in Host Rock)

Corundum (Aluminum Oxide, Al2O3)

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

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Polished jasper pebble (Microcrystalline quartz, SiO₂, with iron-oxide and clay inclusions) — mineral

Polished jasper pebble

Microcrystalline quartz, SiO₂, with iron-oxide and clay inclusions

Yellow jasper (likely iron-stained chert) (Microcrystalline quartz, SiO₂, colored mainly by iron oxides/hydroxides) — mineral

Yellow jasper (likely iron-stained chert)

Microcrystalline quartz, SiO₂, colored mainly by iron oxides/hydroxides

Red jasper (Microcrystalline quartz (SiO₂), commonly colored by iron oxides) — mineral

Red jasper

Microcrystalline quartz (SiO₂), commonly colored by iron oxides

Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Rose Quartz

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

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

Chalcedony with Quartz

Silicon Dioxide (SiO2)

Chert (or Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (or Jasper)

Microcrystalline Quartz (SiO2)

Rounded sandstone pebble (Quartz-rich sandstone (composition cannot be confirmed from the image)) — sedimentary

Rounded sandstone pebble

Quartz-rich sandstone (composition cannot be confirmed from the image)

Polished jasper pebble (Jasper, an opaque microcrystalline variety of quartz (SiO₂), with possible iron-oxide and other mineral inclusions) — mineral

Polished jasper pebble

Jasper, an opaque microcrystalline variety of quartz (SiO₂), with possible iron-oxide and other mineral inclusions

Amethyst cluster (Amethyst, purple quartz (SiO₂)) — mineral

Amethyst cluster

Amethyst, purple quartz (SiO₂)

Blue agate (likely dyed and polished) (Microcrystalline quartz, SiO₂ (chalcedony); blue color may be dye) — mineral

Blue agate (likely dyed and polished)

Microcrystalline quartz, SiO₂ (chalcedony); blue color may be dye

Carnelian pendant (Carnelian, orange chalcedony (microcrystalline quartz, SiO₂)) — gemstone

Carnelian pendant

Carnelian, orange chalcedony (microcrystalline quartz, SiO₂)

Yellow jasper (likely polished/tumbled) (Microcrystalline quartz, SiO₂, colored by iron oxides; exact identification is uncertain from the image) — mineral

Yellow jasper (likely polished/tumbled)

Microcrystalline quartz, SiO₂, colored by iron oxides; exact identification is uncertain from the image

Tumbled carnelian (Carnelian, orange-red chalcedony (microcrystalline SiO₂)) — mineral

Tumbled carnelian

Carnelian, orange-red chalcedony (microcrystalline SiO₂)

Orange carnelian (possibly dyed agate) pendant (Cryptocrystalline quartz (chalcedony), SiO₂) — gemstone

Orange carnelian (possibly dyed agate) pendant

Cryptocrystalline quartz (chalcedony), SiO₂

Green chalcedony (possibly chrysoprase) cabochon (Chalcedony, microcrystalline quartz (SiO₂); chrysoprase is nickel-colored chalcedony) — gemstone

Green chalcedony (possibly chrysoprase) cabochon

Chalcedony, microcrystalline quartz (SiO₂); chrysoprase is nickel-colored chalcedony