Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Category
Mineral_rock
Browse mineral_rock specimens identified by the Rock Identifier community.
Fluorite Tower
Calcium Fluoride (CaF2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Rough Diamond
Diamond (Native Carbon, C)
mineral
Amethyst
Silicon dioxide (variant with ferric iron impurities), SiO2
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Lake Superior Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orange Calcite (Banded Calcite)
Calcium Carbonate (CaCO3)
mineral
Pink Sapphire
Corundum (Al2O3 with Chromium/Titanium/Iron traces)
mineral
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
mineral
Blue Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Moonstone with Black Tourmaline
Orthoclase (KAlSi3O8) with Schorl inclusions (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Banded Agate
Sedimentary Cryptocrystalline Quartz (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Banded Carnelian Agate
Var. of Chalcedony (SiO2)
mineral
Iron Meteorite
Siderite (Iron-Nickel Alloy), predominantly Kamacite and Taenite (Fe, Ni)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Diamond (or Cubic Zirconia)
Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ
mineral
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
mineral
Rose Quartz
Rose Quartz (SiO2 with trace Ti, Fe, or Mn)
mineral
Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Black Tourmaline
Schorl (Sodium iron aluminum borosilicate), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Diamond
C (Carbon)
mineral
Agate
Cryptocrystalline Quartz (SiO2)
mineral