Rock Identifier

Category

Mineral (Specifically A Gemstone Variety)

Browse mineral (specifically a gemstone variety) specimens identified by the Rock Identifier community.

Quartz (Milky/Rose variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Rose variety)

Silicon Dioxide (SiO2)

mineral
Agate (specifically Lake Superior Agate style or Banded Chalcedony) (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Agate (specifically Lake Superior Agate style or Banded Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

mineral
Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

mineral
Olivine (Peridot) (Magnesium Iron Silicate (Mg,Fe)2SiO4) — mineral

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

mineral
Chert (specifically Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint)

Microcrystalline Quartz (SiO2)

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

Jasper

Jasper (Silicon Dioxide, SiO2)

sedimentary
Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

mineral
Sunstone (Feldspar variety) (Oligoclase or Andesine (Na,Ca)(Al,Si)4O8) — mineral

Sunstone (Feldspar variety)

Oligoclase or Andesine (Na,Ca)(Al,Si)4O8

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

mineral
Moonstone (Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite inclusions) — mineral

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8) with Albite inclusions

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

mineral
Rough Corundum (Sapphire/Ruby mixture) (Corundum (Aluminum Oxide, Al2O3)) — mineral

Rough Corundum (Sapphire/Ruby mixture)

Corundum (Aluminum Oxide, Al2O3)

mineral
Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

mineral
Hawk's Eye (Blue Tiger's Eye) (Quartz (fibrous crocidolite variety)) — Mineral

Hawk's Eye (Blue Tiger's Eye)

Quartz (fibrous crocidolite variety)

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Potassium Feldspar (Orthoclase (KAlSi3O8)) — mineral

Potassium Feldspar

Orthoclase (KAlSi3O8)

mineral
Green Calcite (Calcium Carbonate (CaCO3)) — mineral

Green Calcite

Calcium Carbonate (CaCO3)

mineral
Angelite (Anhydrite (Calcium Sulfate, CaSO4)) — mineral

Angelite

Anhydrite (Calcium Sulfate, CaSO4)

mineral
Chert (and associated Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (and associated Flint)

Silicon Dioxide (SiO2)

sedimentary
Carnelian (Carnelian Agate) (Carnelian (Silicon Dioxide - SiO2)) — mineral

Carnelian (Carnelian Agate)

Carnelian (Silicon Dioxide - SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

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

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

mineral
Pebble (river rock/beach pebble) (Pebble (clast size class)) — Sedimentary Rock

Pebble (river rock/beach pebble)

Pebble (clast size class)

Sedimentary Rock
Garnet (Almandine) (Almandine, Fe3Al2Si3O12) — mineral

Garnet (Almandine)

Almandine, Fe3Al2Si3O12

mineral
N/A - Image does not contain a rock or mineral (Anthropogenic textile material) — Non-geological

N/A - Image does not contain a rock or mineral

Anthropogenic textile material

Non-geological
Heliotrope (Bloodstone) (Silicon dioxide (SiO2) with inclusions) — mineral

Heliotrope (Bloodstone)

Silicon dioxide (SiO2) with inclusions

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Amethyst (Quartz variety) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Quartz variety)

Silicon Dioxide (SiO2) with iron impurities

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

Milky Quartz

Silicon Dioxide (SiO2)

mineral
Carnelian (Carnelian (a variety of Chalcedony, SiO2)) — mineral

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

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

Red Jasper

Jasper (Silicon Dioxide with Iron Oxide impurities), SiO2

mineral
Chert (specifically Flint) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint)

Microcrystalline or cryptocrystalline Quartz (SiO2)

sedimentary
Granitic Pegmatite (Coarse-grained Granite (KAlSi3O8 + SiO2)) — igneous

Granitic Pegmatite

Coarse-grained Granite (KAlSi3O8 + SiO2)

igneous
Red Jasper (Siltstone/Quartz variety) (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper (Siltstone/Quartz variety)

Silicon Dioxide (SiO2) with Hematite impurities

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

mineral
Peridot (Olivine ((Mg, Fe)2SiO4)) — mineral

Peridot

Olivine ((Mg, Fe)2SiO4)

mineral
Jasper (specifically a banded or dark variety) (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper (specifically a banded or dark variety)

Silicon Dioxide (SiO2) with impurities

sedimentary
Jasper (Cryptocrystalline Quartz (SiO2)) — sedimentary

Jasper

Cryptocrystalline Quartz (SiO2)

sedimentary
Smoky Quartz (Smoky Quartz (SiO2)) — mineral

Smoky Quartz

Smoky Quartz (SiO2)

mineral
Morganite (Pink Beryl) (Beryllium aluminum silicate Be3Al2(SiO3)6) — mineral

Morganite (Pink Beryl)

Beryllium aluminum silicate Be3Al2(SiO3)6

mineral