Rock Identifier

Category

Mineral, Specifically A Rock Fragment

Browse mineral, specifically a rock fragment specimens identified by the Rock Identifier community.

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Granite Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Granite Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Schist (Garnet-Mica Schist) (Garnet-Mica Schist) — metamorphic

Schist (Garnet-Mica Schist)

Garnet-Mica Schist

Quartz Geode (partially formed) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (partially formed)

Silicon Dioxide (SiO2)

Chert (specifically Brown Chert or Flint) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Brown Chert or Flint)

Cryptocrystalline Quartz (SiO2)

Chert (specifically Jasper or Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Jasper or Flint variant)

Microcrystalline Quartz (SiO2)

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

Jasper (specifically Yellow Jasper and Red Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (specifically Flint or Common Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Flint or Common Chert)

Silicon Dioxide (SiO2)

Chert (specifically Pink Chert or Jasperized Chert) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (specifically Pink Chert or Jasperized Chert)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Jade (specifically Nephrite or Jadeite beads) (Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)) — metamorphic

Jade (specifically Nephrite or Jadeite beads)

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Chert (specifically a flint nodule component) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (specifically a flint nodule component)

Microcrystalline quartz (SiO2)

Chert (specifically Flint or Common Chert) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Common Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline silica (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline silica (SiO2)

Chert (specifically Blue or Grey Chert/Flint) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Blue or Grey Chert/Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Jasper (specifically Yellow or Picture Jasper) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (specifically Yellow or Picture Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (specifically Yellow Jasper variety) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (specifically Yellow Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Flint or Jasper variant) (Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Chert (specifically Flint or Common Opal) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Flint or Common Opal)

Silicon Dioxide (SiO2)

Lazulite (Lazulite (Mg,Fe2+)Al2(PO4)2(OH)2) — mineral

Lazulite

Lazulite (Mg,Fe2+)Al2(PO4)2(OH)2

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles (Mixed gemstones (primarily Silicon Dioxide - SiO2)) — mineral

Mixed collection of Quartz varieties, Chalcedony, and metamorphic pebbles

Mixed gemstones (primarily Silicon Dioxide - SiO2)

Gneiss (with Quartzite and Mica) (Gneiss) — metamorphic

Gneiss (with Quartzite and Mica)

Gneiss

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Schist (Schist (Crystalline metamorphic rock)) — metamorphic

Schist

Schist (Crystalline metamorphic rock)

Greenstone (Metabasalt / Greenschist facies rock) — metamorphic

Greenstone

Metabasalt / Greenschist facies rock

Granite (Granite (Phaneritic igneous rock)) — igneous

Granite

Granite (Phaneritic igneous rock)

Agate (Polished Nodule) (Agate (Silicon Dioxide, SiO2)) — mineral

Agate (Polished Nodule)

Agate (Silicon Dioxide, SiO2)

Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

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

Rose Quartz

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

General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite) (Anhydrite (Calcium Sulfate, CaSO4)) — Mineral

General Rock and Mineral Collection (Center: Angelite / Blue Anhydrite)

Anhydrite (Calcium Sulfate, CaSO4)

Granite (Granite (Felsic Intrusive Igneous Rock)) — igneous

Granite

Granite (Felsic Intrusive Igneous Rock)

River Rocks (Basalt and Sedimentary Stones) (Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock) — igneous and sedimentary

River Rocks (Basalt and Sedimentary Stones)

Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock

igneous and sedimentary

Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade regional metamorphic rock)

Basalt River Stone (Basalt) — igneous

Basalt River Stone

Basalt

Fossilized Shark Tooth in Matrix (Otodus sp. (likely Otodus obliquus)) — sedimentary

Fossilized Shark Tooth in Matrix

Otodus sp. (likely Otodus obliquus)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Diamond (Carbon (C)) — Mineral

Diamond

Carbon (C)

K2 Azurite Granite / K2 Stone (Granite (igneous rock) with Azurite inclusions (mineral)) — igneous

K2 Azurite Granite / K2 Stone

Granite (igneous rock) with Azurite inclusions (mineral)

Basalt with vesicles (Amygdaloidal Basalt) (Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)) — igneous

Basalt with vesicles (Amygdaloidal Basalt)

Amygdaloidal Basalt (predominantly Plagioclase and Pyroxene)

Quartz Pebble (with Mica or Iron staining) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (with Mica or Iron staining)

Silicon Dioxide (SiO2)