Rose Quartz
Quartz (SiO2) with trace elements of titanium, iron, or manganese
mineral
Category
Mineral, Metal (Element)
Browse mineral, metal (element) specimens identified by the Rock Identifier community.
Sandstone
Arenite (general term for sandstone)
Sedimentary Rock
Amethyst
Quartz variety; SiO2 (Silicon Dioxide)
Mineral
Sandstone
Arenite (a specific type of sandstone with less than 15% matrix)
Sedimentary rock
Smoky Quartz
Smoky Quartz (SiO ₂)
Mineral
Barite Rose (Desert Rose)
Barium Sulfate (BaSO4)
mineral
Rutilated Quartz
Quartz (SiO2) with Rutile inclusions (TiO2)
Mineral
Dinosaur Fossil (Tyrannosaurus rex skull replica/specimen)
Tyrannosaurus rex (fossilized in permineralized sedimentary matrix)
sedimentary
Bi-Color Tourmaline (or Watermelon Tourmaline)
Tourmaline (complex borosilicate mineral group with general formula AD3G6(BO3)3T6O18(OH,O)4)
Mineral
Marble
Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)
metamorphic
Chrysoprase
Chalcedony (cryptocrystalline SiO2 variety)
Mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace elements of Titanium, Iron, or Manganese
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace elements of titanium, iron, or manganese
mineral
Strawberry Quartz
Silicon Dioxide (SiO2) with inclusions of Goethite or Hematite
Mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Pebble (likely Sandstone or Granitic Pebble)
Clastic Sediment (or specific rock type, e.g., Arenite, Granitoid Pebble)
Rock (likely Sedimentary)
Sandstone
Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)
Sedimentary Rock
Nephrite Jade
Nephrite
Mineral/Rock
Agate
Agate (a variety of Chalcedony, SiO2)
Mineral
Malachite
Malachite (Cu2CO3(OH)2)
mineral
Petrified Wood
Silicified wood, primarily composed of Quartz (SiO2)
Mineral, often found in sedimentary deposits
Moldavite
Silica glass with small amounts of aluminum, iron, and other elements
Mineraloid / Tektite
Gold Nugget
Native Gold (Au)
mineral
Serpentinite (Serpentine Rock)
Serpentinite is a rock composed of one or more serpentine group minerals, chiefly antigorite, chrysotile, and lizardite, with the general formula (Mg,Fe)3Si2O5(OH)4. Often includes other minerals like magnetite, talc, and chromite.
Metamorphic Rock
Pyrite (Fool's Gold) Cube
Iron Sulfide (FeS2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Black Obsidian and Hematite
Volcanic Glass (SiO2) and Hematite (Fe2O3)
igneous and mineral
Pyrite (on the right) and Magnetite or Hematite (on the left)
Iron Sulfide (FeS2) and Iron Oxide (Fe3O4 or Fe2O3)
mineral
Native Gold (in Jewelry)
Gold (Au)
mineral
Turquoise and Hematite
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3
mineral
Sandstone
Arenite (SiO2 principal)
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Hematite (Oolitic or Earthy variety)
Iron(III) oxide (Fe2O3)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Stainless Steel Spoon
Iron-Chromium Alloy (Fe + Cr + Ni)
mineral-based human-made alloy
Pyrite Geode
Iron Disulfide (FeS2)
mineral
Pyrite (Fool's Gold) Ore
Iron Disulfide (FeS2)
mineral
Titanium Aura Quartz
Titanium bonded Silicon Dioxide (SiO2 + Ti)
mineral
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
mineral
Gold Nugget
Native Gold (Au)
mineral
Gold Nugget
Native Gold (Au)
mineral
Gold-bearing Quartz
Native Gold (Au) in Quartz (SiO2) matrix
mineral