Rock Identifier

Category

Sedimentary (Secondary Classification: Cryptocrystalline Quartz)

Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.

Learn about Sedimentary (Secondary Classification: Cryptocrystalline Quartz) in the encyclopedia

Cactus Quartz

Cactus Quartz

Chalcedony

Chalcedony

Black Onyx

Black Onyx

Quartzite Sandstone

Quartzite Sandstone

Sandstone

Sandstone

Tube Agate

Tube Agate

Landscape Agate

Landscape Agate

Sweetwater Agate

Sweetwater Agate

Zebra Agate

Zebra Agate

Teepee Canyon Agate

Teepee Canyon Agate

Sunset Agate

Sunset Agate

Shadow Agate

Shadow Agate

Jasper with Iron Staining (Silicon Dioxide (SiO2) with Hematite (Fe2O3)) — sedimentary

Jasper with Iron Staining

Silicon Dioxide (SiO2) with Hematite (Fe2O3)

Dyed Agate Slice (Microcrystalline Quartz (SiO2) with artificial pigment) — mineral

Dyed Agate Slice

Microcrystalline Quartz (SiO2) with artificial pigment

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Flint (Chert Node) (Silicon Dioxide (SiO2)) — sedimentary

Flint (Chert Node)

Silicon Dioxide (SiO2)

Dalmation Stone (Peralkaline Rock (mixed silicate minerals)) — igneous

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Lake Superior Agate (Chalcedony (SiO2 with iron impurities)) — mineral

Lake Superior Agate

Chalcedony (SiO2 with iron impurities)

Rose Quartz (Silicon dioxide (SiO2)) — mineral

Rose Quartz

Silicon dioxide (SiO2)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Chalcedony (Agate/Carnelian) (Silicon Dioxide (SiO2)) — mineral

Chalcedony (Agate/Carnelian)

Silicon Dioxide (SiO2)

Chert (Flint Gravel) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint Gravel)

Silicon Dioxide (SiO2)

Fossiliferous Chert (Chert with Crinoid Stem Impression) (Chert (SiO2) with fossil Anthozoan or Crinoid columnals) — sedimentary

Fossiliferous Chert (Chert with Crinoid Stem Impression)

Chert (SiO2) with fossil Anthozoan or Crinoid columnals

Banded Chert (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Jasper (Silicon Dioxide (SiO2)) — mineral

Jasper

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)

Sulfur (Native Sulfur (S8)) — mineral

Sulfur

Native Sulfur (S8)

Banded Agate (Pink/Peach Chalcedony) (Agate (Silicon Dioxide, SiO2)) — mineral

Banded Agate (Pink/Peach Chalcedony)

Agate (Silicon Dioxide, SiO2)

Dyed Agate Geode Slice (Silicon Dioxide (SiO2) - Banded Chalcedony) — mineral

Dyed Agate Geode Slice

Silicon Dioxide (SiO2) - Banded Chalcedony

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Quartz (likely a clear or rock crystal variety) (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz (likely a clear or rock crystal variety)

Quartz (SiO2 - Silicon Dioxide)

Yellow Chert (River Stone) (Chert (SiO2)) — sedimentary

Yellow Chert (River Stone)

Chert (SiO2)

Kyanite in Quartz (Al2SiO5 in SiO2) — metamorphic

Kyanite in Quartz

Al2SiO5 in SiO2

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Agate (Silicon Dioxide (SiO2)) — mineral

Agate

Silicon Dioxide (SiO2)

Quartz (Milky or Cloudy Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or Cloudy Quartz)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Clear Quartz crystals on a Matrix base (Geode fragment) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz crystals on a Matrix base (Geode fragment)

Silicon Dioxide (SiO2)

Puddingstone (Gowganda Tillite/Lorrain Quartzite) (Jasper Conglomerate) — sedimentary

Puddingstone (Gowganda Tillite/Lorrain Quartzite)

Jasper Conglomerate

Geode or Concretion (Silica-filled nodule (likely SiO2)) — sedimentary

Geode or Concretion

Silica-filled nodule (likely SiO2)

Sandstone (Ferruginous) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Chalcedony (Common Opal variant) (Silicon dioxide (SiO2) with microcrystalline structure) — mineral

Chalcedony (Common Opal variant)

Silicon dioxide (SiO2) with microcrystalline structure

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

Jasper (Silicon dioxide (SiO2)) — sedimentary

Jasper

Silicon dioxide (SiO2)

Chert (River Pebble) (Microcrystalline silica (SiO2)) — sedimentary

Chert (River Pebble)

Microcrystalline silica (SiO2)

Brown Jasper (Tiger Jasper) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Brown Jasper (Tiger Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Banded Quartzite (Quartzite (primarily SiO2)) — metamorphic

Banded Quartzite

Quartzite (primarily SiO2)

Ferruginous Quartz (Silicon Dioxide (SiO2) with Hematite/Limonite (Fe2O3·nH2O) inclusions) — mineral

Ferruginous Quartz

Silicon Dioxide (SiO2) with Hematite/Limonite (Fe2O3·nH2O) inclusions

Green Aventurine (Silicon Dioxide (SiO2) with Fuchsite inclusions) — metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions