Zoisite with Ruby
Anyolite (Calcium aluminum hydroxy silicate with Corundum) Ca2Al3(SiO4)3(OH)
metamorphic
Category
Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)
Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.
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Basalt (Vesicular)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Slag
Anthropogenic Vitrification Product / Silicate Slag
Anthropogenic (Man-made industrial byproduct)
Granite pebble
Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica
igneous
Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)
Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)
mineral (synthetic)
Polished milky quartz pebble
Quartz (silicon dioxide, SiO₂)
mineral
Decorative polished pebbles
Likely mixed quartz-rich lithologies, including quartzite, jasper, and/or basalt
mineral
Greenstone
Protolith of basalt, diabase, or gabbro; often contains minerals like chlorite, actinolite, and epidote
metamorphic
Quartz Pebble (with potential iron inclusions)
Silicon Dioxide (SiO2)
mineral
Banded dark pebble (likely gneiss or banded metamorphic rock)
Indeterminate from the image; possibly banded gneiss
metamorphic
Milky quartz pebble
Quartz (silicon dioxide, SiO₂)
mineral
Ferruginous Quartz
Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions
mineral
Gneiss (Augen Gneiss)
Augen Gneiss
metamorphic
Sandstone pebble
Sandstone (siliciclastic sedimentary rock)
sedimentary
Mixed tumbled rock and mineral collection
Varied specimens, including probable quartz varieties, jasper, agate, fluorite, rose quartz, amethyst, pyrite, calcite, and others
mineral
Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Labradorite
Plagioclase Feldspar ((Na,Ca)(Al,Si)4O8)
mineral
Concrete / Conglomerate (Man-made)
Artificial Conglomerate (Cementitious Composite)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Tumbled quartz pebble
Quartz (silicon dioxide, SiO₂), likely milky quartz
mineral
Lava Rock with Fabric Impression
Scoria or Basalt with anthropogenic impressions
igneous
Cupronickel (on a 1981 Mexico 20 Pesos coin)
Copper-Nickel Alloy (Cu75Ni25)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Conglomeratic gravel / polymictic breccia
Polymictic rudite, likely anthropogenic or beach/stream gravel; composition varies
sedimentary
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Zoisite with Hornblende
Zoisite (Ca2Al3(SiO4)3(OH)) with Amphibole inclusions
metamorphic
Chert Arrowhead (Lithic Artifact)
Microcrystalline Quartz (SiO2)
sedimentary
Chalcopyrite
CuFeS2
mineral
Synthetic Wolf Plush (Non-mineral)
Canis lupus similis (Prop material: Polyester & Synthetic fibers)
Synthetic material/Textile
Serpentinite
Serpentinite (Hydrated magnesium iron silicate)
metamorphic
Gneiss
Metamorphic Gneiss
metamorphic
Moqui Marble
Ironstone Concretion (Goethite/Hematite)
sedimentary
Gneiss (with Granite/Pegmatite Vein)
Foliated Metamorphic Rock (Quartz-Feldspar Gneiss)
metamorphic
Slag
Anthropogenic Vitreous Silicate / Ferro-silicate Slag
igneous
Gneiss
Gneissic Metamorphic Rock
metamorphic
Jasper and Basalt (Mixed Breccia or Chert)
Silicon Dioxide (SiO2) with Ferromagnesian silicates
sedimentary and igneous (mixed)
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Mottled quartz pebble
Quartz (SiO₂), likely iron-oxide-stained milky quartz
mineral
Quartzite with Mica / Gneiss Pebble
Metamorphic Rock (Quartz-Feldspar-Mica aggregate)
metamorphic