Quartz Pebble
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a cryptocrystalline variety of quartz) specimens identified by the Rock Identifier community.
Quartz Pebble
Silicon Dioxide (SiO2)
Chalcedony (River Stone)
Silicon Dioxide (SiO2)
Chalcedony
Silicon Dioxide (SiO₂)
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (specifically Citrine or Yellow Quartzite pebble)
Silicon Dioxide (SiO2)
Quartz (specifically Milky or Rose Quartz variant)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Fossil Coral
Coral Limestone (a type of biogenic sedimentary rock)
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Quartz (Clear or Milky)
Silicon Dioxide (SiO2)
Agate
Cryptocrystalline Quartz (SiO2)
Green Aventurine
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities, microcrystalline quartz
Jasper / Agate (Chalcedony)
Silicon dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
Chert (Chalcedony/Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline quartz (SiO2)
Quartz Crystal (specifically a small Clear Quartz point)
Silicon Dioxide (SiO2)
Pink Granite
Felsic Plutonic Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Jasper Pebble
Tumbled Jasper (Microcrystalline Quartz, SiO2)
Agate Geode
Cryptocrystalline Quartz (SiO2)
Black Onyx
Cryptocrystalline Quartz (SiO2)
Brown Chalcedony (Agate/Jasper)
Cryptocrystalline Quartz (SiO2)
Banded Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony (Carnelian/Jasper Pebble)
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Agate Geode
Cryptocrystalline Quartz (SiO2)
Black Onyx or Dyed Agate Node
Cryptocrystalline Quartz (SiO2)
Carnelian / Chalcedony
Cryptocrystalline Quartz (SiO2)