Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Category
This Appears To Be A Man Made Metallic Object, Likely Jewelry, Not A Natural Rock, Mineral, Or Geological Specimen.
Browse this appears to be a man made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen. specimens identified by the Rock Identifier community.
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Black Pearl (Tahitian Type)
Aragonite / Conchiolin composite (CaCO3)
mineraloid
Pink Granite (Potassium-rich)
Phaneritic Felsic Igneous Rock (K-Feldspar Granite)
igneous
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
sedimentary
Pink Granite
Granite (Alkali-feldspar granite)
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Onyx (Black Onyx)
Silicon Dioxide (SiO2) - Chalcedony variety
Mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Spiny Oyster Shell
Spondylus varians (Biogenic Calcium Carbonate)
mineral
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe oxides)
mineral
Yellow Quartz (Citrine or Quartzite Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Amethyst
Amethyst (Silicon Dioxide with Iron impurities), SiO2
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Amethyst Quartz with Matrix
Silicon Dioxide (SiO2)
mineral
Banded Agate (specifically Botryoidal/Orbicular Agate)
Silicon Dioxide (SiO2)
Mineral (variety of Chalcedony/Quartz)
Granite
Granite (Phaneritic Acidic Igneous Rock)
igneous
Quartzite
SiO2 (Crystalline Quartz)
metamorphic
Magnetite
Magnetite (Fe3O4)
Mineral
Mica Schist
Mica Schist (primarily composed of Muscovite, Biotite, and Quartz)
metamorphic
Moss Agate
Moss Agate (a variety of Chalcedony, SiO ₂)
Mineral (specifically a variety of Chalcedony, which is microcrystalline Quartz)
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Sandstone (with potential fossil inclusions)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Dyed Quartzite
Metamorphosed Quartz (SiO2) with synthetic pigment
metamorphic
White Quartz (Milky Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Calcite
Calcium Carbonate (CaCO3)
mineral
Granite Pebble
Granite (Felsic Intrusive Igneous Rock)
igneous
Diamond (set in Gold)
Diamond (pure carbon, C)
mineral
Iron Meteorite
Iron-nickel alloy (primarily kamacite and taenite)
Meteorite (extraterrestrial material)
Note: Item is not a geological specimen
Polyester mesh and Ethylene-vinyl acetate (EVA) polymer
Synthetic / Anthropogenic Material
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Banded Calcite (often sold as 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Pearl
Calcium Carbonate (CaCO3) - mainly Aragonite and Calcite
mineral
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Quartzite Pebbler
Quartzite (primarily SiO2)
metamorphic
Peridot
Olivine ((Mg,Fe)2SiO4)
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Pyrite (Fool's Gold) in Matrix
Iron Sulfide (FeS2)
mineral