Nuummite
Antophyllite-Gedrite (Orthorhombic amphiboles)
Category
Browse mineral (metal) specimens identified by the Rock Identifier community.
Nuummite
Antophyllite-Gedrite (Orthorhombic amphiboles)
Ocean Jasper
Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)
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)
Jasper
Jasper (Cryptocrystalline variety of Quartz, SiO2)
Limonite after Pyrite (Pseudomorph)
FeO(OH)·nH2O following FeS2
Ocean Jasper
Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)
Carnelian
Carnelian (SiO2)
Amethyst (Tumbled Quarz)
Silicon Dioxide (SiO2) with iron impurities
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Raw Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Moonstone with Black Tourmaline
Orthoclase (KAlSi3O8) with Schorl inclusions
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst
Silicon Dioxide (SiO2)
Amethyst (Rough Quartz)
Silicon Dioxide (SiO2 with Iron impurities)
Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)
Quartz Geode
Silicon Dioxide (SiO2) in a Secondary Formation
Sunkissed Quartz or Hematoid Quartz
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Amazonite
Potassium Feldspar (KAlSi3O8) with lead impurities
Yooperlite (Syenite clast containing fluorescent Sodalite)
Sodalite-bearing Syenite
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Amethyst (Geode)
Silicon Dioxide (SiO2) with iron impurities
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Cinnabar
Mercury(II) sulfide (HgS)
Amethyst Quartz
Silicon Dioxide (SiO2) with iron impurities
Bornite
Bornite (Cu5FeS4)
Zoisite with Ruby
Anyolite (Ca2Al3(SiO4)3(OH) with Al2O3:Cr)
Moonstone
Orthoclase (Potassium aluminum silicate - KAlSi3O8)
Emerald In Matrix (Quartz/Calcite)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Blue Lace Agate (with Amethyst Geode center)
Silicon Dioxide (SiO2) - Cryptocrystalline Chalcedony
Agate (specifically Waterline or Onyx-type Agate)
Silicon Dioxide (SiO2) - variety Chalcedony
Diamond in Kimberlite
Kimberlite host rock with C (Carbon) inclusion
Gneiss
Gneiss
Granite
Granite
Banded Gneiss
Gneiss
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
Schist with Quartz/Mica
Mica Schist (primarily Muscovite and Quartz)
Limonite (Pseudomorph after Pyrite/Marcasite)
Hydrated Iron Oxide (FeO(OH)·nH2O)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and mineral inclusions
Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)