Polished Jasper
Cryptocrystalline quartz, SiO2
Category
Browse sedimentary (cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Polished Jasper
Cryptocrystalline quartz, SiO2
Agate
Agate (Cryptocrystalline Quartz)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony (Agate/Carnelian)
Cryptocrystalline Quartz (SiO2)
Jasper / Agate / Chalcedony
Cryptocrystalline quartz (SiO2)
Yellow chalcedony or quartz fragment
Microcrystalline quartz, SiO₂ (tentative; possibly iron-stained chalcedony)
Agate
Cryptocrystalline quartz (SiO2)
Jasper Agate
Cryptocrystalline quartz, SiO2
Chert (Jasper)
Cryptocrystalline Quartz (SiO2)
Jasper / Chert (Red)
Cryptocrystalline quartz (SiO2)
Black Onyx
Cryptocrystalline quartz (SiO2)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Chert (River Pebble)
Cryptocrystalline Quartz (SiO2)
Jasper
Cryptocrystalline Quartz (SiO2)
Chalcedony (Quartz Pebbles)
Silicon Dioxide (SiO2)
Brown Chalcedony (Agate/Jasper)
Cryptocrystalline Quartz (SiO2)
Chert (Siltstone / Flint)
SiO2 (Cryptocrystalline Quartz)
Chert
Cryptocrystalline Quartz (SiO2)
Chert / River Pebble
Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper)
Cryptocrystalline Quartz (SiO2)
Flint
SiO2 (Cryptocrystalline Quartz)
Chalcedony
Cryptocrystalline Quartz (SiO2)
Chalcedony (Tumbled)
Cryptocrystalline Quartz (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Flint
SiO2 (Cryptocrystalline Quartz)
Jasper
Cryptocrystalline quartz (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Carnelian
Carnelian (Silicon Dioxide, SiO2)
Chalcedony (Agate / Jasper Specimen)
Silicon Dioxide (SiO2)
Shiva Lingam (Polished Jasper)
Cryptocrystalline Quartz (SiO2) with Iron Oxide inclusions
Chert / Flint
Cryptocrystalline quartz (SiO2)
Chert (Arrowhead Fragment)
Cryptocrystalline quartz (SiO2)
Chert / Flint Handaxe
Cryptocrystalline Quartz (SiO2)
Reddish-brown chert or jasper fragment
Microcrystalline quartz (SiO₂), likely iron-oxide-stained chert/jasper
Jasper
SiO2 (Cryptocrystalline quartz)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Flint
SiO2 (Cryptocrystalline Quartz)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Agate (Chert/Chalcedony)
Cryptocrystalline Quartz (SiO2)
Chert / Flint Pebble
Cryptocrystalline Quartz (SiO2)
Chert / Jasper
Cryptocrystalline Quartz (SiO2)
Rounded chalcedony or milky quartz pebble
Microcrystalline silica, SiO₂ (chalcedony/quartz)