Flower Jasper
Agatized Fossil Coral / Chalcedony (SiO2)
sedimentary
Category
Mineralogical Specimen
Browse mineralogical specimen specimens identified by the Rock Identifier community.
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Dyed Pink Agate (or Dyed Quartzite)
Silicon dioxide (SiO2) with artificial pigment
sedimentary
Chert (Jasper-like Silicate)
Microcrystalline Quartz (SiO2)
sedimentary
Andesite Porphyry (Geological Drill Core)
Andesite Porphyry
igneous
Iron Ore (Hematite/Goethite)
Ironstone (Fe2O3 / FeO(OH))
sedimentary
Honey Calcite (Orange Onyx)
Calcium Carbonate (CaCO3)
mineral
Iron Meteorite
Siderite (Iron-Nickel Alloy), predominantly Kamacite and Taenite (Fe, Ni)
mineral
Turritella Agate (Calligrapher Stone)
Silicified Elimia tenera (Chalcedony/Quartz)
sedimentary
Note regarding baguette production (not a rock)
Digital text image - Somali language
not a rock
Hematite or Goethite-rich Ironstone
Ironstone (Oxidized Iron Ore)
sedimentary
Banded Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (River Stone)
Silicon Dioxide (SiO2)
mineral
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
Strawberry Quartz
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
mineral
Clear Quartz Crystal (Herkimer Diamond style)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
mineral/igneous
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
igneous
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Yellow Chert (Jasper)
Chalcedony (SiO2) with iron oxide inclusions
sedimentary
Granite Water-Worn Pebble
Phaneritic intrusive igneous rock (Felsic)
igneous
Amber
Succinite (a specific common type) or Fossilized Tree Resin (C10H16O)
Mineraloid
Sandstone (Quartzose)
Arenite (SiO2 principal)
sedimentary
Chert (Fossiliferous)
Silicon Dioxide (SiO2)
sedimentary
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Quartzite pebble
Quartzite (SiO2)
metamorphic
Yellow Chert (Cherty Pebble)
Silicon Dioxide (SiO2)
sedimentary
Fossiliferous Limestone (Coral Rag)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Granite (Weathered River Rock)
Granite (Phaneritic Igneous Rock)
igneous
Granite (Weathered)
Granitic intrusive rock
igneous
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite (River Pebble)
Quartzite (SiO2)
metamorphic
River Pebble (Likely Quartzite or Chert)
Silicon Dioxide (SiO2)
metamorphic or sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Belemnoit (Fossil)
Belemnoidea (Order), Rostrum / Guard
sedimentary