Rock Identifier

Category

Mineral, Organic Gemstone

Browse mineral, organic gemstone specimens identified by the Rock Identifier community.

Emerald In Matrix (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — mineral

Emerald In Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Amethyst (Amethyst (SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (SiO2 with Iron impurities)

Amazonite in Matrix (Potassium Feldspar (Microcline), KAlSi3O8) — mineral

Amazonite in Matrix

Potassium Feldspar (Microcline), KAlSi3O8

Turquoise (Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)

Amazonite (Amazonite (KAlSi3O8, a variety of Microcline)) — mineral

Amazonite

Amazonite (KAlSi3O8, a variety of Microcline)

Chrysocolla in Matrix (Hydrated copper silicate - (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla in Matrix

Hydrated copper silicate - (Cu,Al)2H2Si2O5(OH)4·nH2O

Rhodochrosite with Pyrite and Quartz (Manganese Carbonate (MnCO3)) — mineral

Rhodochrosite with Pyrite and Quartz

Manganese Carbonate (MnCO3)

Labradorite (Labradorite (Plagioclase Feldspar Series: (Ca,Na)(Al,Si)4O8)) — mineral

Labradorite

Labradorite (Plagioclase Feldspar Series: (Ca,Na)(Al,Si)4O8)

Moonstone (Orthoclase Feldspar (KAlSi3O8)) — Mineral

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Sodalite (Sodalite (Na8(Al6Si6O24)Cl2)) — mineral

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

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

Citrine

Citrine (Silicon Dioxide - SiO2)

Sunstone (Plagioclase feldspar (with Copper or Hematite inclusions)) — mineral

Sunstone

Plagioclase feldspar (with Copper or Hematite inclusions)

Rough Emerald (Beryl (Be3Al2(SiO3)6 with Chromium/Vanadium impurities)) — mineral

Rough Emerald

Beryl (Be3Al2(SiO3)6 with Chromium/Vanadium impurities)

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

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Aquamarine (Beryl (Be3Al2Si6O18 with iron impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Amethyst (Amethyst (Silicon Dioxide, SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2 with Iron impurities)

Amazonite (Potassium Feldspar (Microcline), K(AlSi3O8)) — mineral

Amazonite

Potassium Feldspar (Microcline), K(AlSi3O8)

Amazonite (Microcline (KAlSi3O8) with lead inclusions) — mineral

Amazonite

Microcline (KAlSi3O8) with lead inclusions

Amazonite (Potassium Feldspar (Microcline), K(AlSi3O8)) — mineral

Amazonite

Potassium Feldspar (Microcline), K(AlSi3O8)

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

Carnelian

Carnelian (a variety of Chalcedony, SiO₂)

Rhodochrosite (Manganese Carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese Carbonate (MnCO3)

Chert (Flint variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline quartz (SiO2)

Prehnite (Calcium aluminum silicate hydroxide - Ca2Al(AlSi3O10)(OH)2) — mineral

Prehnite

Calcium aluminum silicate hydroxide - Ca2Al(AlSi3O10)(OH)2

Epidote in Matrix (likely Amphibolite or Gneiss) (Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) in Metamorphic Matrix) — metamorphic

Epidote in Matrix (likely Amphibolite or Gneiss)

Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) in Metamorphic Matrix

Chert (Chert Pebble) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chert Pebble)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Turquoise (CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminium phosphate)

Turquoise (Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O

Amethyst Geode (Silicon Dioxide with impurities (SiO2)) — mineral

Amethyst Geode

Silicon Dioxide with impurities (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Labradorite (Gray Tumbled) (Labradorite (Ca,Na)(Al,Si)4O8) — mineral

Labradorite (Gray Tumbled)

Labradorite (Ca,Na)(Al,Si)4O8

Citrine (Silicon dioxide (SiO2)) — mineral

Citrine

Silicon dioxide (SiO2)

Quartz (specifically Rose or Smoky tinted Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Rose or Smoky tinted Quartz)

Silicon Dioxide (SiO2)

Moonstone (Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8) — mineral

Moonstone

Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8

Carnelian (Carnelian (SiO2)) — mineral

Carnelian

Carnelian (SiO2)

Black Pearl (Tahitian Style) (Calcium Carbonate (Aragonite) - CaCO3 with Conchiolin) — mineral

Black Pearl (Tahitian Style)

Calcium Carbonate (Aragonite) - CaCO3 with Conchiolin

Star Ruby (Corundum (Al2O3 with chromium and rutile inclusions)) — mineral

Star Ruby

Corundum (Al2O3 with chromium and rutile inclusions)

Rough Quartz (var. Citrine or Yellow Quartz) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (var. Citrine or Yellow Quartz)

Silicon Dioxide (SiO2)

Amazonite (K(AlSi3O8), Microcline (potassium feldspar)) — mineral

Amazonite

K(AlSi3O8), Microcline (potassium feldspar)