Banded Agate (specifically Botryoidal/Orbicular Agate)
Silicon Dioxide (SiO2)
Mineral (variety of Chalcedony/Quartz)
Category
Mineral (Specifically A Gemstone Variety)
Browse mineral (specifically a gemstone variety) specimens identified by the Rock Identifier community.
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Aventurine
Aventurine (Silicon Dioxide with Fuchsite inclusions) - SiO2
mineral
Orange Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Rhodolite Garnet
Mg3Al2(SiO4)3 - Fe3Al2(SiO4)3 (Pyrope-Almandine series)
mineral
Charoite
Charoite (K(Ca,Na)2Si4O10(OH,F)·nH2O)
metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Ruby (Raw/Rough)
Corundum (Al2O3 with Chromium trace)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
African Turquoise
Jasper / Quartz matrix (Trade name: African Turquoise, chemically a form of microcrystalline quartz with various mineral inclusions)
gemstone
Dragon Blood Jasper
Epidote with Red Jasper (Quartz variety)
sedimentary
Crazy Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Jasper (specifically Yellow or Bumblebee-like Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Smoky Quartz (with complementary stones in jewelry setting)
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Jadeite
Jadeite (NaAlSi2O6)
metamorphic
Moldavite
Moldavite (Silica-rich glass, SiO2 + Al2O3)
tektite
Sunstone with Black Tourmaline (Arfvedsonite)
Feldspar (Na,Ca)(Al,Si)4O8 with Schorl Na(Fe3+)3Al6(Si6O18)(BO3)3(OH)3(OH)
mineral
Amazonite
Microcline (variety of Potassium Feldspar), KAlSi3O8
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Chert (Jasper-rich)
Silicon Dioxide (SiO2)
sedimentary
Turquoise (Blue Howlite imitation)
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Chert
Microcrystalline quartz (SiO2)
sedimentary
Brown Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Ocean Jasper
Orbicular Jasper / SiO2
gemstone
Buffalo Nickel (Indian Head Nickel)
Cupronickel (75% Copper, 25% Nickel)
mineral (processed alloy)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Agate Nodules
Cryptocrystalline Quartz (SiO2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Amazonite
Potassium Feldspar (KAlSi3O8), specifically Microcline
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
igneous
Milky Quartz (with potential inclusion)
Silicon Dioxide (SiO2)
mineral
Agate (specifically, likely a geode slice or nodule)
Agate (a variety of Chalcedony, with chemical formula SiO2)
Mineral
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Larimar
Pectolite (NaCa2Si3O8(OH))
mineral
Amethyst (Tumbled)
Amethyst (SiO2 with iron impurities)
mineral
Lace Agate (specifically Red Lace Agate)
Silicon Dioxide (SiO2) - variety of Chalcedony/Quartz
Mineral