Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with various inclusions
sedimentary (geologically classified as a variety of chalcedony/quartz)
Category
Sedimentary (Geologically Classified As A Variety Of Chalcedony
Browse sedimentary (geologically classified as a variety of chalcedony specimens identified by the Rock Identifier community.
Learn about Sedimentary (Geologically Classified As A Variety Of Chalcedony in the encyclopedia
View all →
Green Jasper / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Yellow Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
mineral
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Gray chalcedony (microcrystalline quartz)
Chalcedony, SiO₂; likely common gray/blue-gray variety
mineral
Chalcedony (Agate Nodule)
Silicon Dioxide (SiO2)
mineral
Onyx Marble (Banded Calcite)
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Chert (Common Opal/Jasper transition)
Silicon Dioxide (SiO2)
sedimentary
Band Agate / Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Tumbled carnelian (likely agate/chalcedony)
Cryptocrystalline quartz, SiO₂; iron-oxide-colored chalcedony
gemstone
Moss Agate
Silicon dioxide (SiO2) with inclusions
Mineral
Tumbled jasper (likely yellow/orbicular jasper)
Microcrystalline quartz, SiO₂, with iron-oxide and other mineral inclusions
mineral
Chalcedony (Agate/Opal hybrid)
Microcrystalline Quartz (SiO2) with potential amorphous silica (SiO2·nH2O)
mineral
Chalcedony (Botryoidal or Tumbled)
Chalcedony (SiO₂)
mineral
Blue Lace Agate (or similar Chalcedony)
SiO2 (Silicon Dioxide)
mineral
Quartz Pebble (Chert/Chalcedony)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Banded Calcite (often sold as 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Tumbled jasper (likely picture jasper or iron-rich jasper)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron oxides
sedimentary
Jasper
SiO2 (Silicon Dioxide)
mineral
Banded Calcite (Mexican Onyx)
Calcium Carbonate (CaCO3)
sedimentary
Tumbled jasper
Microcrystalline quartz (SiO₂), commonly iron-oxide-bearing chalcedony
mineral
Rough Blue Sapphire
Corundum (Al2O3)
mineral
Chalcedony Nodule (Carnelian/Agate)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Tumbled carnelian
Carnelian, orange-red variety of cryptocrystalline chalcedony (SiO₂)
gemstone
Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Agate (or Chalcedony)
Silicon Dioxide (SiO2)
mineral
Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe/Chlorite)
mineral
Pebble
Lithic fragment (Quartzite or general rock pebble)
sedimentary
Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')
Calcite (CaCO3)
sedimentary
Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
igneous
Polished orange agate or chalcedony
Microcrystalline quartz (SiO₂), likely iron-stained chalcedony/agate
mineral
Tumbled jasper
Microcrystalline quartz (chalcedony), chiefly SiO₂, colored by iron oxides and other impurities
mineral
Bloodstone (Heliotrope)
Cryptocrystalline Quartz (SiO2) with inclusions of Hematite or Chlorite
mineral
Tumbled amber-colored chalcedony (likely carnelian)
Quartz, microcrystalline SiO₂; orange variety commonly called carnelian
mineral
Tumbled carnelian
Carnelian, orange chalcedony (microcrystalline SiO₂)
gemstone
Jasper
Silicon dioxide (SiO2)
sedimentary
Honey-colored chalcedony (likely carnelian)
Microcrystalline quartz, SiO₂; orange chalcedony colored by iron oxides
mineral
Yellow Quartz (Chalcedony/Agate)
Silicon Dioxide (SiO2)
Mineral
Chert (Chalcedony/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary