Quartzite with Mica / Gneiss Pebble
Metamorphic Rock (Quartz-Feldspar-Mica aggregate)
metamorphic
Category
Sedimentary Like (Industrial Composite)
Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.
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Jasper and Mudstone Composite
Silicified Sedimentary Rock / Jasperoid Pebble
sedimentary
Composite Turquoise or Reconstituted Turquoise with Copper inclusions
CuAl6(PO4)4(OH)8·4H2O (Turquoise) mixed with matrix and copper/bronze flakes
mineral
Mother of Pearl (Nacre)
Aragonite (CaCO3) with Organic Matrix
mineral
Concrete
Anthropogenic Sedimentary Rock (Hydrated Calcium Silicate)
sedimentary (anthropogenic / man-made)
Crushed Granite and Quartz Gravel
Composite Igneous and Silicate Rock Aggregate
igneous
Cultured Marble (Synthetic)
Polymer-matrix composite (typically calcium carbonate in polyester resin)
Synthetic / Composite Material
Terrazzo (Man-made Composite)
Cementitious or Resin-bound Lithic Composite
sedimentary (artificial)
Purple Turquoise (Composite Mojave Turquoise)
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper aluminum phosphate composite)
mineral
Conglomerate
Polymictic Conglomerate
sedimentary
Concrete Fragment
Hardened Portland Cement Composite
Anthropogenic (Man-made material mimicking sedimentary rock)
Polished banded agate slab or agate-look decorative stone
Microcrystalline quartz (chalcedony), SiO₂; exact identification is uncertain from the image
gemstone
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
man-made composite (lithified equivalent of sedimentary)
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Concrete
Hydrated Portland Cement Aggregate Composite
Anthropogenic Sedimentary (Man-made)
Blue quartzite or blue aventurine glass-like aggregate
Quartzite, predominantly SiO₂ (identification uncertain from image)
metamorphic
Buffalo Nickel (Indian Head Nickel)
Cupronickel (75% Copper, 25% Nickel)
mineral (processed alloy)
Pearl (likely Freshwater or Akoya Cultured)
Aragonite / Conchiolin composite (CaCO3)
Mineralloid (Organic gemstone)
Wood Paneling
Engineered Wood / Plywood Paneling
not a rock
Copper Composite Turquoise (Purple and Blue)
Composite Hydrous copper aluminum phosphate with bronze/copper matrix binding
gemstone
Que Sera Stone (Llanite with Feldspar and Quartz)
Rhyolite with blue quartz and pink orthoclase (Llanite-type quartz porphyry)
igneous
Unakite
Unakite Epidosite (composite of Epidote, Orthoclase, and Quartz)
metamorphic
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
mineral
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Tiger Iron
Composite rock (Quartz, Tiger's Eye, Hematite, and Jasper)
metamorphic
Terrazzo (with Marble and Granite fragments)
Cementitious or resinous composite containing Calcium Carbonate (CaCO3) and Silicates
sedimentary (man-made composite)
Engineered Quartz (Quartzite look-alike)
Silicon Dioxide (SiO2) composite
mineral-based composite
Pink Zebra Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Connemara Marble
Calcitic Marble / Serpentinite composite
metamorphic
Black Pearl (Tahitian Type)
Aragonite / Conchiolin composite (CaCO3)
mineraloid
Engineered Quartz Stone
Agglomerated Quartz (SiO2 + Polymer Resin)
mineral-based composite
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Terrazzo (Synthetic Composite Rock)
Cementitious or Epoxy Resin-bound Aggregates
Man-made metamorphic-style composite
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Pink Garnet (likely Almandine or Rhodolite)
Garnet Group (Fe3Al2(SiO4)3 to Mg3Al2(SiO4)3)
mineral
Seven Chakra Bonded Stone
Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz
metamorphic
Iron-Nickel Meteorite (Possible Chondrite or Oxidized Iron)
Siderite (Nickel-Iron) or Chondrite (Si/Fe composite)
igneous
Unakite
Epidotized Granite
metamorphic
Sandstone
Arenite
sedimentary
River Pebble (Granitic / Quartzite Pebble)
Quartz-Feldspar Aggregate (SiO2 / KAlSi3O8)
igneous