Likely vertebra fossil or bone fragment
Indeterminate fossilized vertebra; mineralized hydroxyapatite, commonly Ca₅(PO₄)₃(OH)
fossil
Category
Sedimentary Like (Industrial Composite)
Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.
Learn about Sedimentary Like (Industrial Composite) in the encyclopedia
View all →
Conglomerate
Sedimentary Conglomerate
sedimentary
Portable Ceramic Space Heater
Polished Acrylonitrile Butadiene Styrene (ABS) Plastic with Ceramic Heating Elements
not a rock (synthetic/industrial object)
Green aventurine quartz (probable)
Quartz, silicon dioxide (SiO₂), with disseminated green mica/fuchsite inclusions
mineral
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Petrified Wood
Silicified wood (Quartz pseudomorph after wood)
fossil
Desert Rose Selenite (Gypsum)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Sandstone
Sandstone (SiO2-rich clastic sedimentary rock)
sedimentary
Sandstone
Arenite (lithic or quartz sandstone)
sedimentary
Quartz (Milky Quartz vein fragment)
Silicon Dioxide (SiO2)
mineral
Shale
Fissile mudstone (Shale)
sedimentary
Gneiss
Gneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Raw Fluorite
Calcium Fluoride (CaF2)
mineral
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Jasper (Iron-rich Chert)
Silicon Dioxide (SiO2) with impurities of Hematite or Goethite
sedimentary
Diamond Plate (Steel)
Alloyed Carbon Steel or Aluminum with 'Durbar' pattern
not a rock (Man-made industrial metal)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Milky Quartz Cobble
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Dalmatian Jasper
Peralkalic Quartz-Feldspar Porphyry
igneous
Diamond (Cut Specimen)
Diamond (pure carbon, C)
mineral
Sandstone Pebble
Arenite (typically SiO2)
sedimentary
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Desert Rose (also known as Sand Rose)
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions
mineral
Blue calcite (probable)
Calcite, calcium carbonate (CaCO₃)
mineral
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Red Jasper (River Siltstone)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Gemstone Tree Brooch (Agate and Quartz)
Silicon Dioxide (SiO2)
mineral
Specularite in Quartz
Specular Hematite (Fe2O3) in Quartz (SiO2)
mineral
Sandstone Pebble
Sandstone (primarily Quartz, SiO2)
sedimentary
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Rutilated Quartz
SiO2 with TiO2 inclusions
Mineral
Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
mineral
Boji Stone (Pop Rocks or Moqui Marbles)
Iron-manganese oxide concretion (Goethite/Hematite/Jarosite)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Brown Chert
Cryptocrystalline Silica (SiO2)
sedimentary
Chert (varieties: Flint or Jasper)
Microcrystalline Quartz (SiO2)
sedimentary