Rock Identifier

Category

Tektite (Natural Glass)

Browse tektite (natural glass) specimens identified by the Rock Identifier community.

Learn about Tektite (Natural Glass) in the encyclopedia

Macusanite

Moldavite

Obsidian

Black Obsidian

Green Obsidian

Blue Obsidian

Midnight Obsidian

Maskelynite

Pink Obsidian

Purple Obsidian

Purple Obsidian

Teal Obsidian

Yellow-Green Obsidian

Yellow-Green Obsidian

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

Jasper

Silicon Dioxide (SiO2) with impurities

Jasper (Silicon dioxide (Microcrystalline quartz, SiO2 with iron oxide impurities)) — sedimentary

Jasper

Silicon dioxide (Microcrystalline quartz, SiO2 with iron oxide impurities)

Yellow Jasper (Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper (Silicon dioxide (SiO2) with impurities) — sedimentary

Jasper

Silicon dioxide (SiO2) with impurities

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

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

Jasper

Jasper (Silicon Dioxide, SiO2)

Chert Nodules (Limonitic Chert) (Cryptocrystalline Quartz (SiO2) with Hydrated Iron Oxides) — sedimentary

Chert Nodules (Limonitic Chert)

Cryptocrystalline Quartz (SiO2) with Hydrated Iron Oxides

Herkimer Diamond (Quartz (Silicon Dioxide, SiO2)) — mineral

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Citrine (Citrine (Silicon Dioxide, SiO2)) — mineral

Citrine

Citrine (Silicon Dioxide, SiO2)

Smoky Quartz with Feldspar (SiO2 (Quartz) with KAlSi3O8 (Potassium Feldspar)) — mineral

Smoky Quartz with Feldspar

SiO2 (Quartz) with KAlSi3O8 (Potassium Feldspar)

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

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Black Onyx (Silicon Dioxide (SiO2)) — mineral

Black Onyx

Silicon Dioxide (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Moonstone (specifically White Moonstone or Girasol Quartz) (Potassium aluminum silicate (KAlSi3O8)) — mineral

Moonstone (specifically White Moonstone or Girasol Quartz)

Potassium aluminum silicate (KAlSi3O8)

Granite (Phaneritic Felsic Igneous Rock (composed主に of SiO2, Al2O3, K2O, Na2O)) — igneous

Granite

Phaneritic Felsic Igneous Rock (composed主に of SiO2, Al2O3, K2O, Na2O)

Amethyst (Cabochon) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Cabochon)

Silicon Dioxide (SiO2) with iron impurities

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

Yellow Quartz Pebble

SiO2 (Silicon Dioxide)

Amethyst (Silicon Dioxide (SiO2)) — mineral

Amethyst

Silicon Dioxide (SiO2)

Amethyst (Silicon dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon dioxide (SiO2) with iron impurities

Smoky Quartz in Matrix (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz in Matrix

Silicon Dioxide (SiO2)

Smoky Quartz (SiO2 (Silicon Dioxide)) — mineral

Smoky Quartz

SiO2 (Silicon Dioxide)

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

Smoky Quartz Pebble

Silicon Dioxide (SiO2)

Halite (Rock Salt) (Halite (NaCl)) — mineral

Halite (Rock Salt)

Halite (NaCl)

Green Quartz (Prasiolite variant or Aventurine) (Silicon Dioxide (SiO2)) — mineral

Green Quartz (Prasiolite variant or Aventurine)

Silicon Dioxide (SiO2)

Granite (Intrusive Felsic Igneous Rock) — igneous

Granite

Intrusive Felsic Igneous Rock

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

Jasper

Silicon Dioxide (Microcrystalline Quartz), SiO2

Red Jasper (Quartz (Microcrystalline silica), SiO2) — sedimentary

Red Jasper

Quartz (Microcrystalline silica), SiO2

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

Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Jasper

Microcrystalline Quartz (SiO2)

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

Red Jasper

Silicon Dioxide with Iron Oxide (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)

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

Jasper (Banded Jasper)

Silicon Dioxide (SiO2) with impurities

Black Jasper (Etched) (Silicon Dioxide (SiO2) with impurities) — mineral

Black Jasper (Etched)

Silicon Dioxide (SiO2) with impurities

Red Jasper (River pebble) (Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)) — mineral

Red Jasper (River pebble)

Jasper (Silicon Dioxide, SiO2 plus iron oxide impurities)

White Quartz Sphere (Silicon Dioxide (SiO2)) — mineral

White Quartz Sphere

Silicon Dioxide (SiO2)

Yellow Jasper (Silicon dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon dioxide (SiO2)