Rock Identifier

Category

Man Made Glass (Often Grouped With Minerals In Lapidary)

Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.

Learn about Man Made Glass (Often Grouped With Minerals In Lapidary) in the encyclopedia

Opalite

Goldstone

Euxenite

Blue Goldstone

Serpentinite

Serpentine

Potassium Feldspar

Potassium Feldspar

Pink Lady Obsidian

Pele's Tears

Electric Blue Obsidian

Red Obsidian

Black Shale

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

Rose Quartz

Quartz (Silicon Dioxide - SiO2)

Sandstone (specifically Lithic or Quartz Arenite) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (specifically Lithic or Quartz Arenite)

Arenite (composed primarily of SiO2)

Quartz with Pyrite and Lichen (Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)) — mineral

Quartz with Pyrite and Lichen

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Rose Quartz

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

Chert (specifically Banded Chert or Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Banded Chert or Flint)

Microcrystalline Quartz (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Serpentinite (Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of Serpentine group minerals: (Mg, Fe)3Si2O5(OH)4)

Geode (unopened) (SiO2 - Chert-shelled concretion (mostly Quartz)) — sedimentary

Geode (unopened)

SiO2 - Chert-shelled concretion (mostly Quartz)

Quartz (Water-worn Pebbles) (Silicon Dioxide (SiO2)) — mineral

Quartz (Water-worn Pebbles)

Silicon Dioxide (SiO2)

Tumbled carnelian agate with dark mineral inclusions (Carnelian, an orange variety of microcrystalline quartz (chalcedony), SiO₂; dark inclusions are likely iron oxides/hydroxides, possibly hematite, goethite, or a basaltic/matrix fragment) — gemstone

Tumbled carnelian agate with dark mineral inclusions

Carnelian, an orange variety of microcrystalline quartz (chalcedony), SiO₂; dark inclusions are likely iron oxides/hydroxides, possibly hematite, goethite, or a basaltic/matrix fragment

Chert (with Limestone/Dolomite host) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (with Limestone/Dolomite host)

Microcrystalline Quartz (SiO2)

Yellow Quartz (Chalcedony or Agate) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Chalcedony or Agate)

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

Quartz Vein / Milky Quartz

Silicon Dioxide (SiO2)

Orange Quartz (likely Carnelian or stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Orange Quartz (likely Carnelian or stained Quartz)

Silicon Dioxide (SiO2)

Chert (or possibly Flint) (Chert (variant: Flint)) — Sedimentary

Chert (or possibly Flint)

Chert (variant: Flint)

Sandstone with Hematite staining (Arenite with Fe2O3 inclusions) — sedimentary

Sandstone with Hematite staining

Arenite with Fe2O3 inclusions

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Chert (Jasper variation) (Chert (Silicate mineral, SiO2)) — sedimentary

Chert (Jasper variation)

Chert (Silicate mineral, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Fossil Coral (Rugosa or Tabulata coral fossil (Calcite/Silica replacement)) — fossil

Fossil Coral

Rugosa or Tabulata coral fossil (Calcite/Silica replacement)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Chalcedony Pebble (Silicon Dioxide (SiO2)) — mineral

Chalcedony Pebble

Silicon Dioxide (SiO2)

Garnet-bearing Quartzite (Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)) — metamorphic

Garnet-bearing Quartzite

Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)

Chert (Septarian or Banded Nodular Variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Septarian or Banded Nodular Variety)

Microcrystalline Quartz (SiO2)

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

Jasper (Green)

Silicon Dioxide (SiO2) with impurities

Chert (Flint) River Pebble (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint) River Pebble

Microcrystalline Quartz (SiO2)

Green Aventurine (Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)) — Mineral

Green Aventurine

Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)

Massive Quartz (Milky or Gray) (Silicon Dioxide (SiO2)) — mineral

Massive Quartz (Milky or Gray)

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold) in Matrix (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold) in Matrix

Iron Disulfide (FeS2)

Quartz (Milky or Pink-tinged) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Pink-tinged)

Silicon Dioxide (SiO2)

Tumbled chalcedony (likely blue-gray agate) (Cryptocrystalline quartz, SiO₂; chalcedony/agate variety) — mineral

Tumbled chalcedony (likely blue-gray agate)

Cryptocrystalline quartz, SiO₂; chalcedony/agate variety

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

Quartz (Water-worn Pebble)

Quartz (Silicon Dioxide, SiO2)

Red Jasper (Jasper (Silicon Dioxide, SiO2 with Iron Oxide impurities)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide, SiO2 with Iron Oxide impurities)

Quartzite Pebble (Metamorphic Quartz-rich Rock) — metamorphic

Quartzite Pebble

Metamorphic Quartz-rich Rock

Polished black agate slice (Chalcedony (microcrystalline quartz), SiO₂, with iron/manganese staining) — mineral

Polished black agate slice

Chalcedony (microcrystalline quartz), SiO₂, with iron/manganese staining

Milky Quartz with Iron Staining (Silicon Dioxide (SiO2) with Limonite/Goethite) — mineral

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2) with Limonite/Goethite

Yellow Quartzite (Iron-Stained) (Quartzite (primarily SiO2 with iron oxide impurities)) — metamorphic

Yellow Quartzite (Iron-Stained)

Quartzite (primarily SiO2 with iron oxide impurities)