Banded Chert (Jasper)
Silicon Dioxide (SiO2)
Category
Browse mineral (treated) specimens identified by the Rock Identifier community.
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar, and Plagioclase Feldspar)
Milky Quartz
Silicon Dioxide (SiO2)
Moonstone
Orthoclase Feldspar (formula: (K,Na)AlSi3O8)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Sandstone
Sandstone (clastic sedimentary rock, composed predominantly of sand-sized minerals or rock fragments)
Amygdaloidal Basalt
Vesicular Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with included minerals (Fuchsite for green)
Mica Schist
Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)
Mixed Gemstone Beaded Jewelry
Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)
Labradorite
Labradorite (a calcium-enriched sodic plagioclase feldspar mineral - (Ca, Na)(Al, Si)4O8)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rough Diamond
Diamond (Native Carbon, C)
Diamond (in a jewelry setting)
Diamond (Carbon, C)
White Agate / Chalcedony
Silicon Dioxide (SiO2)
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
Eudialyte in Matrix
Na15Ca6(Fe,Mn)3Zr3(Si,Nb) (Si25O73) (OH,Cl,H2O)3
Diamond
Diamond (Pure Carbon, C)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Diamond (in Gold Jewelry)
Carbon (C)
Rough Diamond
Diamond (Native Carbon), C
Milky Quartz
Silicon Dioxide (SiO2)
Rough Diamond
Diamond (pure Carbon, C)
Blue-dyed Quartz Druzy
Silicon Dioxide (SiO2) with artificial pigment
Diamond
Native Carbon (C)
Quartz pebble
Silicon dioxide (SiO2)
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
Diamond (in jewelry setting)
Diamond (Carbon, C)
Quartz Pebble
Silicon Dioxide (SiO2)
Pink Tourmaline (Rubellite)
Rb:Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 (Elbaite variety)
Magnetite
Magnetite (Fe3O4)
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
Pink Granite
Phaneritic Felsic Igneous Plutonic Rock
Metal Chain Belt with Square Plates
Not applicable (man-made)
Granite Pebble
Granite (composition of Quartz, Alkali Feldspar, and Plagioclase)
Schist (Garnet-Mica Schist)
Garnet-Mica Schist
Granite
Granite (High-silica plutonic rock)
Chert (often found as Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)