Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)
Mineral
Category
Mineral Composite
Browse mineral composite specimens identified by the Rock Identifier community.
Pink Granite
Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)
igneous
Amygdaloidal Basalt
Vesicular Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)
igneous
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with included minerals (Fuchsite for green)
Metamorphic Rock / Mineral (Quartz Variety)
Desert Rose (Gypsum Variety)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Mica Schist
Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)
metamorphic
Sandstone (Quartz-rich)
Arenite (composed primarily of SiO2)
sedimentary
Rough Diamond
Diamond (Native Carbon), C
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rough Diamond
Diamond (pure Carbon, C)
mineral
Blue-dyed Quartz Druzy
Silicon Dioxide (SiO2) with artificial pigment
mineral
Diamond
Native Carbon (C)
mineral
Quartz pebble
Silicon dioxide (SiO2)
mineral
Sugilite
Sugilite (KNa2(Fe,Mn,Al)2Li3Si12O30)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Diamond (in jewelry setting)
Diamond (Carbon, C)
mineral
Sandstone
Arenite (composed primarily of Quartz: SiO2)
sedimentary
Mixed Gemstone Beaded Jewelry
Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)
Mineral
Labradorite
Labradorite (a calcium-enriched sodic plagioclase feldspar mineral - (Ca, Na)(Al, Si)4O8)
mineral
Sandstone with Bedding Planes
Arenite (Sedimentary rock composed primarily of sand-sized minerals)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Rough Diamond
Diamond (Native Carbon, C)
mineral
Diamond (in a jewelry setting)
Diamond (Carbon, C)
mineral
White Agate / Chalcedony
Silicon Dioxide (SiO2)
mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
Mineral
Eudialyte in Matrix
Na15Ca6(Fe,Mn)3Zr3(Si,Nb) (Si25O73) (OH,Cl,H2O)3
mineral
Diamond
Diamond (Pure Carbon, C)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Pink Tourmaline (Rubellite)
Rb:Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 (Elbaite variety)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Slate
Slate (a fine-grained, foliated metamorphic rock). Mineral composition: Primarily composed of mica minerals (muscovite, chlorite, sericite) and quartz, with minor amounts of hematite, pyrite, and other accessory minerals.
sedimentary
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
sedimentary
Pink Granite
Phaneritic Felsic Igneous Plutonic Rock
igneous
Metal Chain Belt with Square Plates
Not applicable (man-made)
Man-made Object (Metalwork)
Granite Pebble
Granite (composition of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Schist (Garnet-Mica Schist)
Garnet-Mica Schist
metamorphic
Granite
Granite (High-silica plutonic rock)
igneous
Chert (often found as Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Granite
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous