Rock Identifier

Category

Mineral (Evaporite)

Browse mineral (evaporite) specimens identified by the Rock Identifier community.

Septarian Nodule (Dragon Stone) (Septarian concretion (composition: CaCO3 - Calcite, Aragonite, and Siderite/Limestone)) — sedimentary

Septarian Nodule (Dragon Stone)

Septarian concretion (composition: CaCO3 - Calcite, Aragonite, and Siderite/Limestone)

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

Amethyst

Silicon Dioxide (SiO2) with Iron impurities

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

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

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Quartz (Druzy/Macro-crystalline) (Silicon Dioxide (SiO2)) — mineral

Quartz (Druzy/Macro-crystalline)

Silicon Dioxide (SiO2)

Dalmatian Stone (Dalmatian Jasper) (Peralkaline Quartz-Feldspar Rock with Arfvedsonite) — igneous

Dalmatian Stone (Dalmatian Jasper)

Peralkaline Quartz-Feldspar Rock with Arfvedsonite

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

Amethyst (Quartz)

Silicon Dioxide (SiO2) with Iron impurities

Amazonite (Tectosilicate (variety of Microcline), K(AlSi3O8)) — mineral

Amazonite

Tectosilicate (variety of Microcline), K(AlSi3O8)

Ruby in Kyanite (Corundum (Al2O3) in Kyanite (Al2SiO5)) — metamorphic

Ruby in Kyanite

Corundum (Al2O3) in Kyanite (Al2SiO5)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Amethyst (Chevron or Banded Amethyst) (Silicon Dioxide (SiO2) with trace Iron (Fe)) — mineral

Amethyst (Chevron or Banded Amethyst)

Silicon Dioxide (SiO2) with trace Iron (Fe)

Nuummite (Antophyllite-Gedrite (Orthorhombic amphiboles)) — metamorphic

Nuummite

Antophyllite-Gedrite (Orthorhombic amphiboles)

Ocean Jasper (Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)) — sedimentary

Ocean Jasper

Orbicular Jasper (variety of Chalcedony/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

Tiger's Eye (Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)) — metamorphic

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Jasper (Jasper (Cryptocrystalline variety of Quartz, SiO2)) — sedimentary

Jasper

Jasper (Cryptocrystalline variety of Quartz, SiO2)

Limonite after Pyrite (Pseudomorph) (FeO(OH)·nH2O following FeS2) — mineral

Limonite after Pyrite (Pseudomorph)

FeO(OH)·nH2O following FeS2

Ocean Jasper (Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)) — sedimentary

Ocean Jasper

Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)

Carnelian (Carnelian (SiO2)) — mineral

Carnelian

Carnelian (SiO2)

Amethyst (Tumbled Quarz) (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst (Tumbled Quarz)

Silicon Dioxide (SiO2) with iron impurities

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

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

Raw Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Moonstone with Black Tourmaline (Orthoclase (KAlSi3O8) with Schorl inclusions) — mineral

Moonstone with Black Tourmaline

Orthoclase (KAlSi3O8) with Schorl inclusions

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

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Silicon Dioxide (SiO2)) — mineral

Amethyst

Silicon Dioxide (SiO2)

Amethyst (Rough Quartz) (Silicon Dioxide (SiO2 with Iron impurities)) — mineral

Amethyst (Rough Quartz)

Silicon Dioxide (SiO2 with Iron impurities)

Schorl (Black Tourmaline) (NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)) — mineral

Schorl (Black Tourmaline)

NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)

Quartz Geode (Silicon Dioxide (SiO2) in a Secondary Formation) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a Secondary Formation

Sunkissed Quartz or Hematoid Quartz (Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions) — mineral

Sunkissed Quartz or Hematoid Quartz

Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions

Amazonite (Potassium Feldspar (KAlSi3O8) with lead impurities) — mineral

Amazonite

Potassium Feldspar (KAlSi3O8) with lead impurities

Yooperlite (Syenite clast containing fluorescent Sodalite) (Sodalite-bearing Syenite) — igneous

Yooperlite (Syenite clast containing fluorescent Sodalite)

Sodalite-bearing Syenite

Chrysocolla (Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O) — mineral

Chrysocolla

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

Quartz (Citrine or Iron-Stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

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

Amethyst (Geode)

Silicon Dioxide (SiO2) with iron impurities

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Cinnabar (Mercury(II) sulfide (HgS)) — mineral

Cinnabar

Mercury(II) sulfide (HgS)

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

Amethyst Quartz

Silicon Dioxide (SiO2) with iron impurities

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)

Zoisite with Ruby (Anyolite (Ca2Al3(SiO4)3(OH) with Al2O3:Cr)) — metamorphic

Zoisite with Ruby

Anyolite (Ca2Al3(SiO4)3(OH) with Al2O3:Cr)

Beryl (likely Aquamarine or Green Beryl) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (likely Aquamarine or Green Beryl)

Beryllium aluminum silicate (Be3Al2Si6O18)

Moonstone (Orthoclase (Potassium aluminum silicate - KAlSi3O8)) — mineral

Moonstone

Orthoclase (Potassium aluminum silicate - KAlSi3O8)

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

Emerald In Matrix (Quartz/Calcite)

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities