Pebble (likely Quartz or Chert)
SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.
Sedimentary Rock
Category
Sedimentary And Igneous (Mixed)
Browse sedimentary and igneous (mixed) specimens identified by the Rock Identifier community.
Learn about Sedimentary And Igneous (Mixed) in the encyclopedia
View all →
Quartz pebble
SiO2
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Silicon dioxide (chalcedony), SiO2
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Pink/Rose Quartz or Quartz Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Agate
Chalcedony (SiO2)
sedimentary
White Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz Beads
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Calcite on Matrix
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Crystalline fragment)
Silicon Dioxide (SiO2)
mineral
Pyrite and Sunstone
Iron Sulfide (FeS2) and Plagioclase Feldspar ((Ca,Na)Al(Al,Si)Si2O8)
mineral
Carnelian
Carnelian (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Garnet
Garnet (X3Y2(SiO4)3)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Clear quartz crystal sphere
Quartz (silicon dioxide, SiO₂)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Dalmatian Stone
Peralkaline rhyolite with arfvedsonite inclusions
igneous
Dalmatian Jasper / Dalmatian Stone
Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)
igneous
Dalmatian Stone
Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)
igneous
Dalmatian Stone
Peralkaline igneous rock containing quartz, feldspar, and arfvedsonite
igneous
K2 Jasper (K2 Granite)
Azurite in Granite (Biotite Granite containing Azurite)
igneous
Dalmatian Stone (commonly Dyed)
Dalmatian Jasper (Peralkaline igneous rock)
igneous