Amygdaloidal Basalt
Basalt with secondary mineral infilling (commonly SiO2 or Zeolites)
igneous
Category
Mineral
Browse mineral specimens identified by the Rock Identifier community.
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Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Blue Apatite
Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Milky or Greenish Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Basalt with Quartz Vein and Weathering Crust
Amygdaloidal or Porphyritic Basalt
igneous
Himalayan Salt
Halite (mineral name), chemical formula NaCl (sodium chloride). Generally, 'Himalayan Salt' is a trade name for evaporite minerals from specific regions.
Mineral
Yellow Sapphire (Raw)
Corundum (Al2O3)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Amber
Succinate (Fossilized Resin)
mineral
Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Obsidian
Volcanic glass (SiO2 + impurities)
igneous
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Ruby and Diamond Heart Pendant
Corundum (Al2O3) and Diamond (C)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Obsidian
Extrusive igneous volcanic glass (rich in SiO2)
igneous
Quartz (Milky/Crystalline variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (possibly Citrine or Smoky Quartz variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky to Clear)
Silicon Dioxide (SiO2)
mineral
Obsidian
Extrusive igneous volcanic glass
igneous
Granite
Granite (a common name for a felsic intrusive igneous rock)
Igneous Rock
Sandstone (Iron-stained)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
sedimentary
Fluorite with Rhodochrosite
Fluorite (CaF2) and Rhodochrosite (MnCO3)
Mineral
Jasper with Quartz Vein
Silicon Dioxide (SiO2) with impurities
sedimentary
Red Sandstone
Arenite (primarily Quartz with Iron Oxide coating)
sedimentary
Blue Aragonite
Aragonite (Calcium Carbonate, CaCO3)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Larimar
NaCa2Si3O8(OH)
gemstone
Lepidolite in Quartz Matrix
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Geode or Concretion
Silica-filled nodule (likely SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) within a geode
mineral