Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Category
Mineral, Jewelry
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
mineral
Blue Tiger's Eye (Hawks Eye)
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Extrusive)
igneous
Howlite (Tumbled)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
mineral
Red Jasper
Jasper (Silicate Mineral), SiO2 with Fe2O3 inclusions
sedimentary
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2 with FeOOH inclusions)
metamorphic
Peacock Ore
Bornite (Cu5FeS4)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Carnelian
Carnelian (Microcrystalline Quartz, SiO2 with Fe2O3 impurities)
mineral
Blue Lace Agate
Silicon Dioxide (SiO₂), a variety of Chalcedony
mineral
Gold
Native Gold (Au)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Brecciated Chert
Sedimentary Chert (SiO2) with Calc-Silicate mineralization
sedimentary
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Diamond
Diamond (C)
mineral
Lapis Lazuli
Lazurite-dominant Metamorphic Rock (complex aluminosilicate)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Diamond (Cluster Ring)
Carbon (C)
mineral
Calligraphy Stone
Mariam Jasper (Fossiliferous Limestone with Hematite and Iron)
sedimentary
Quartz Geode (partially opened)
Silicon Dioxide (SiO2) with iron staining
mineral
Diamond (or high-quality simulant like Cubic Zirconia)
Carbon (C) - Native Element
mineral
Garnetiferous Pegmatite
Pegmatite with Almandine Garnet and Muscovite
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
metamorphic
Ammolite
Biogenic gemstone (Aragonite, CaCO3)
mineral
Garnet and Quartz
Pyrope or Almandine (Red Garnets) and Quartz (Center Stone)
mineral
Yellow Aventurine
Quartzite with inclusions (SiO2)
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Agate / Banded Chalcedony
Agate (Silicon Dioxide / SiO2)
mineral
Blue Quartz (Dumortierite Quartz)
Quartz (SiO2) with inclusions of Dumortierite (Al7(BO3)(SiO4)3O3)
mineral
Red Tiger's Eye
SiO2 (Silicon Dioxide) - Pseudomorph of Quartz after Crocidolite
mineral
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
mineral
Milky Quartz with Iron Inclusions
Crystalline Silicon Dioxide (SiO2)
mineral
Freshwater Pearl
Aragonite / Biogenic Calcium Carbonate (CaCO3)
mineral
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Tourmalinated Quartz
Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral