Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse this is not a rock or mineral specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock
Quartz Crystal on Matrix
Silicon Dioxide (SiO2)
Unable to identify - Image contains non-geological items
Quartz Vein in Amphibolite / Gneiss
Quartz (SiO2) in Mafic Metamorphic Host Rock
Wishing Rock (Quartz Vein in Host Rock)
Silicon dioxide (SiO2) vein in various host rocks
Granite
Intrusive Igneous Rock
Sandstone
Arenite
Banded Sandstone
Arenite (with iron oxide banding)
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Siliclastic Sedimentary Rock)
Sandstone with Secondary Mineral Encrustation
Arenite with Silica/Calcite deposits (SiO2 or CaCO3)
Granite
Granite
Greenschist (or Serpentinite) with Quartz-Feldspar Vein
Metabasalt / Greenschist Facies Rock
Basalt (Greenstone/Water-worn Pebble)
Basalt (containing Chlorite/Epidote)
Quartz Vein in Sedimentary Matrix
Silicon Dioxide (SiO2) with host rock
Quartz in Matrix (possibly Basalt or Siltstone host)
Silicon Dioxide (SiO2) in Host Rock
Lapis Lazuli
(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2 (Complex silicate rock)
Gneiss
Foliated Metamorphic Rock (Gneiss)
Generic Rock Fragment
Rock Fragment
Banded Gneiss
Gneiss (high-grade metamorphic silicate rock)
Granite
Felsic intrusive igneous rock
Fossil Shell
Invertebrate fossil (Mollusca)
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
Veined Limestone (Micrite) with Quartz/Calcite Veins
Calcium Carbonate (CaCO3) with Silicate or Carbonate inclusions
Greywacke (likely)
Greywacke (a type of sandstone)
Unknown Tumbled Stone
Unknown (Too Blurry)
Moonstone
Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8
Sandstone Pebble
Sandstone (Silicon dioxide-rich clastic sedimentary rock)
Sandstone
Arenite
Vesicular Basalt (or Scoria)
Vesicular Basalt
Quartz Geode
Silicon Dioxide (SiO2) within a sedimentary or volcanic shell
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone with Desert Varnish
Arenite (SiO2 predominantly) with Ferromanganese coating
Quartz Geode
Silicon Dioxide (SiO2) within a geode
Gneiss
Gneiss (Metamorphic Rock)
Sandstone with Concretions / Liesegang Rings
Arenite with iron oxide banding
Sandstone
Clastic Sedimentary Rock
Quartz Geode
Silicon Dioxide (SiO2)
Granitic Gneiss
Gneiss (Metamorphic Rock)
Agated Chert
Microcrystalline Quartz (SiO2)
Biotite Mica Schist
Metamorphic Rock containing Biotite K(Mg,Fe)3AlSi3O10(OH)2