Smoky Quartz
Smoky Quartz (SiO2)
Mineral
Category
Mineral (Native Element)
Browse mineral (native element) specimens identified by the Rock Identifier community.
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Red Jasper (beads)
Silicon Dioxide (SiO2) with iron inclusions
Sedimentary Rock
Basalt with Weathered Surface
Basalt
Igneous
Garnet (Almandine or Spessartine likely)
Garnet Group Minerals (e.g., Almandine Fe3Al2(SiO4)3, Pyrope Mg3Al2(SiO4)3, Spessartine Mn3Al2(SiO4)3)
Mineral
Rose Quartz
Quartz (SiO2) with trace impurities causing pink color
Mineral
Calcite (Yellow/Orange variety - sometimes called Honey Calcite)
Calcite
Mineral
Nephrite Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral
Mica (likely Muscovite)
Muscovite / KAl2(AlSi3O10)(OH)2
mineral
Banded Chert / Banded Jasper (likely a variety of Chert/Chalcedony)
Chert (microcrystalline quartz)
Metamorphic Rock
Aura Quartz Bead
Silicon dioxide (SiO2) with metal coating
mineral with artificial coating
Pegmatite
Granite Pegmatite
igneous
Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)
Mineral
Amazonite with Smoky Quartz and Feldspar
Microcline (KAlSi3O8) with Quartz (SiO2)
mineral
N/A (Non-Geological Specimen)
N/A
Silicon Carbide (Carborundum)
Silicon Carbide, SiC
mineral
Amethyst (Tumbled)
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
mineral
Quartz with Feldspar and Mica (Pegmatite Fragment)
Granitic Pegmatite
igneous
Amethyst
Quartz (Silicon Dioxide, SiO2)
mineral
Amethyst
Quartz (SiO2)
mineral
Quartz with Tourmaline Inclusions
Silicon Dioxide with complex boro-silicate (SiO2 + Na(Fe3+Al6)(BO3)3Si6O18(OH)4)
mineral
Amethyst
Quartz (Silicon Dioxide, SiO2)
gemstone
Opalite
Synthetic Opalized Glass
gemstone
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Aquamarine (Rough)
Beryl (Be3Al2Si6O18)
mineral
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Portable Ceramic Space Heater
Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements
not a rock (synthetic/industrial object)
Amethyst
Quartz (Silicon Dioxide, SiO2)
mineral
Sunstone
(Ca,Na)((Al,Si)2Si2)O8 (Plagioclase Feldspar)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2 with Iron impurities)
mineral
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)
mineral
Limonite after Pyrite (Prophecy Stone)
Limonite (FeO(OH)·nH2O) replacing Pyrite (FeS2)
Mineral pseudomorph
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Eudialyte with Syenite
Eudialyte: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
igneous
Amethyst
Quartz (SiO2)
mineral
Diamond
C (Carbon)
mineral
Chevron Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Blue Sapphire (Synthetic or Man-made Glass Imitation)
Corundum (Al2O3) if natural; Lead-glass or Spinal if synthetic
mineral
Amazonite
Microcline feldspar (KAlSi3O8)
mineral