Granite or Granitic Gneiss
Granitoid / Gneiss
Category
Browse mixed specimens identified by the Rock Identifier community.
Granite or Granitic Gneiss
Granitoid / Gneiss
Gravel or Crushed Stone
Fragmented Aggregate Stone
Quartz with Mica inclusions (Pegmatite)
Silicon Dioxide (SiO2) with Muscovite/Biotite inclusions
Mixed Gemstone Collection
SiO2 (Quartz varieties) and Biogenic CaCO3 (Nacre)
Granite or Pegmatite with Quartz and Feldspar
Granitoid
Tiffany Stone
Fluorite-bearing Opalized Breccia
Caribbean Calcite
Calcite (CaCO3) with Aragonite (CaCO3)
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
Asphalt Concrete
Bituminous conglomerate
Milky Quartz with Nephrite Jade
Silicon Dioxide (SiO2) with Ca2(Mg,Fe)5Si8O22(OH)2
Jasper containing Agate (Jaspagate)
Silicon Dioxide (SiO2)
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions (SiO2 + Fe2O3)
Engineered Quartz Stone
Agglomerated Quartz (SiO2 + Polymer Resin)
Dragon Blood Jasper
Epidote with Red Jasper (Quartz-rich aggregate)
Puddingstone
Conglomerate
Malachite with Chrysocolla
Copper carbonate hydroxide (Cu2CO3(OH)2) and Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Smoky Quartz and Orthoclase Feldspar
Granitic Pegmatite (SiO2 + KAlSi3O8)
Unakite
Epidotized Granite
Granite Pebble
Granite (composed of Quartz, Feldspar, and Mica)
Unakite
Unakite (altered granite)
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Costume Jewelry Gemstones (Emerald-imitation and semi-precious beads)
BeCuAl6Si6O18 (Beryl structure), frequently simulated by glass or synthetic spinel
Mixed Gemstone and Mineral Collection
Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)
Mookaite Jasper
Silicified Radiolarite (SiO2 with iron impurities)
Chrysocolla in Matrix
Chrysocolla (Cu,Al)2H2Si2O5(OH)4·nH2O
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Gold Flakes
Native Gold (Au)
Concrete rubble
Anthropogenic conglomerate
Concrete with Aggregate
Composite construction material; primary matrix is Calcium Silicate Hydrate (C-S-H)
Concrete / Anthropogenic Conglomerate
Man-made composite material (Portland cement, aggregate, and water)
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Concrete Rubble with Aggregate
Hardened Portland Cement Paste with Coarse Aggregate
Mookaite Jasper
Silicified Radiolarite (SiO2)
Gravel or Pebble
Clastic Sedimentary Grain (typically composed of Quartz or Silicate minerals)
Aventurine (Green Quartz)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Pink Granite (Gneissic Granite)
Granite (composed primarily of Quartz, K-Feldspar, and Plagioclase)
Lapis Lazuli
Lapis lazuli (complex rock composed of Lazurite, Calcite, and Pyrite)
Unakite
Unakite (Metasomatized Granodiorite)
Pink Granite
Granite (rich in Potassium Feldspar/Orthoclase)
Unakite
Epidotized Granite
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)