Kambaba Jasper
Rhyolite (Volcanic rock) or Stromatolite (debated)
Igneous/Sedimentary (debated)
Category
Sedimentary Rock (Technically Chert, A Microcrystalline Quartz)
Browse sedimentary rock (technically chert, a microcrystalline quartz) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Technically Chert, A Microcrystalline Quartz) in the encyclopedia
View all →
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
igneous
Crazy Lace Agate
Chalcedony (SiO2) with microcrystalline quartz
sedimentary
Brown Pebble (Probable Chert or Siltstone)
Silicon Dioxide (SiO2) / Sedimentary Microcrystalline Quartz
sedimentary
Dalmatian Jasper
Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)
igneous
Common Opal with Host Rock
Opal (Hydrated silica, SiO2·nH2O)
mineral
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)
Mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Dalmatian Stone
Dalmatian Jasper (actually a Peralkaline Igneous Rock)
igneous
Jasper (Red/Brown Variety)
Jasper (Silicon Dioxide, SiO2 plus Iron Oxide impurities)
sedimentary
Lapis Lazuli (Tumbled Specimen)
Lapis Lazuli (Aggregate rock containing Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)
metamorphic
Banded Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Dalmation Stone
Dalmation Jasper (Igneous microcrystalline quartz with arfvedsonite)
igneous
Jasper Shard / Chert
Silicon dioxide (SiO2)
sedimentary
Chert (Jasper/Flint variant)
Silicon Dioxide (SiO2)
sedimentary
Veined Pebble (likely a Quartz-Veined Pebble)
Pebble with Mineral Vein (e.g., Quartz Vein in a Chert/Mudstone Pebble)
Sedimentary Rock (possibly conglomerate or breccia with a quartz vein)
Agate
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert / Fossilized Burrow Cast
Microcrystalline Quartz (SiO2) with Trace Carbonates
sedimentary
Quartz / Common Opal Transition
Silicon Dioxide (SiO2)
mineral
Green Chert
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz with Chlorite Schist Inclusions
Quartz (SiO2) with Chlorite Group silicates (typically (Mg,Fe)3(Si,Al)4O10(OH)2)
metamorphic
Quartz Veined Siltstone or Graywacke
Clastic Sedimentary Rock with Quartz (SiO2) veining
sedimentary
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
River Gravel (Quartzite and Chert pebbles)
Silicon Dioxide (SiO2)
sedimentary
Red Jasper (Mookaite style)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Jasper
Chalcedony (SiO2)
Sedimentary/Mineral
Agate (Nodule/Chert)
Silicon Dioxide (SiO2)
sedimentary
Chert Breccia
Brecciated Chert
sedimentary
Chalcedony Nodule (Agate/Chert)
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
mineral
Dalmatian Stone (commonly called Dalmatian Jasper)
Peralkaline Rock (mixed Feldspar, Quartz, and Arfvedsonite)
igneous
Moss Agate and Druzy Quartz Carving
Cryptocrystalline Silica (SiO2) with impurities
mineral
Quartz Sand/Gravel
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Greywacke)
Arenite / Greywacke Sandstone
sedimentary
Chert (Limestone-based)
Silicon Dioxide (SiO2)
sedimentary
Chert (containing Flint and Calcareous inclusions)
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) impurities
sedimentary
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Chert (also known as Flint or Common Chalcedony)
Cryptocrystalline Silica (SiO2)
sedimentary
Jasper (Iron-stained Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary