Clear quartz pendant
Quartz (silicon dioxide, SiO₂)
mineral
Category
Igneous And Metamorphic
Browse igneous and metamorphic specimens identified by the Rock Identifier community.
Learn about Igneous And Metamorphic in the encyclopedia
View all →
Milky quartz
Quartz (SiO₂)
mineral
Translucent quartz pebble (likely milky quartz)
Quartz, SiO₂; exact variety cannot be confirmed from the photograph
mineral
Multi-stone gemstone ring
Likely faceted blue topaz or synthetic blue stone with clear stones, possibly cubic zirconia or diamond; metal setting appears silver-colored alloy
gemstone
Blue-gray quartz-rich rock, possibly blue aventurine or sodalite-bearing stone
Probable quartz–feldspar aggregate; exact identification requires testing
mineral
Tiny rounded brown mineral grain
Indeterminate; possibly iron oxide, garnet, or a weathered sulfide grain
mineral
Sapphire
Corundum (Al2O3) with traces of Iron and Titanium
gemstone
Moonstone
Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Clear quartz crystal
Quartz (silicon dioxide, SiO₂)
mineral
Raw greenish crystal/mineral fragment
Uncertain from image; possibly olivine (forsterite-rich), epidote, or green tourmaline
mineral
Weathered gray-green pebble
Indeterminate; possibly altered basalt, serpentinite, or a greenish metamorphic rock
mineral
Tumbled Mixed Gemstones and Rocks
Various mineral species including quartz (SiO2) and silicate minerals
mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2
mineral
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz with Calcite/Quartz Veining
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
mineral
Sapphire (Rough Corundum)
Corundum (Aluminum Oxide, Al2O3)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Citrine Quartz Sphere
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone variant potential)
Magnetite (Fe3O4)
mineral
Moonstone (Tumbled)
Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8
mineral
Citrine
Citrine (Silicon Dioxide, SiO2)
mineral
Green Aventurine
Silicon dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Hematite
Iron Oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled blue stone, possibly sodalite or blue quartz
Indeterminate from the photograph; possibilities include sodalite (Na₈Al₆Si₆O₂₄Cl₂) or blue quartz (SiO₂)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Pyrite (FeS2)
mineral
Yellow Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Black Sapphire
Corundum (Al2O3 with inclusions of hematite or ilmenite)
mineral