Quartz Geode in Sedimentary Host Rock
Silicon Dioxide (SiO2) in Carbonate Matrix
sedimentary
Category
Sedimentary (Host)
Browse sedimentary (host) specimens identified by the Rock Identifier community.
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Quartz Geode
Silicon Dioxide (SiO2) in a sedimentary host
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2) in a Sedimentary Host
mineral
Cannonball Concretion
Calcite-cemented Sandstone Concretion
sedimentary
Druzy Quartz on Sandstone
Silicon Dioxide (SiO2) on Sedimentary Host Rock
mineral
Milky Quartz in Shale
Silicon Dioxide (SiO2) in sedimentary host rock
mineral
Calcite in Matrix
Calcium Carbonate (CaCO3) on Sedimentary Host Rock
mineral
Quartz Geode
Silicon Dioxide (SiO2) in sedimentary host rock
sedimentary
Geode (Unopened)
Silicon Dioxide (SiO2) in sedimentary host rock
sedimentary
Quartz Vein in Basalt or Sedimentary Host Rock
Silica-veined lithic fragment (SiO2 in host matrix)
sedimentary
Chert (Flint) with Limestone Matrix
Silicon Dioxide (SiO2) within Calcium Carbonate (CaCO3)
sedimentary
Quartz Geode in Chert/Limestone Matrix
Silicon Dioxide (SiO2) within Sedimentary Host Rock
sedimentary
Druzy Quartz Geode (Partially Open)
Silicon Dioxide (SiO2) within Sedimentary Host Rock
sedimentary
Quartz Geode
Silicon Dioxide (SiO2) within Sedimentary host rock
mineral
Quartz-veined Sandstone
Sedimentary rock with quartz vein (SiO2)
sedimentary
Yellow Jasper
Silica (Silicon Dioxide, SiO2) with iron inclusions
sedimentary
Chert (Black Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Precious Opal
Hydrated Silica (SiO2·nH2O)
mineral
Banded Agate
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Botryoidal Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Calcite / Geode Fragment
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)
mineral
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
mineral
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Banded Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Quartz (or Chalcedony) Specimen
Silicon Dioxide (SiO2)
mineral
Small white mineral fragment
Indeterminate; possibly quartz, calcite, or feldspar
mineral
Agate (or Operculum / Fossil Shell)
Silicon Dioxide (SiO2)
mineral
Quartz-encrusted Matrix
Silicon Dioxide (SiO2) with Ferruginous Sandstone
sedimentary
Chert (Common Opal/Chalcedony nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Chert (Iron-stained)
Silicon Dioxide (SiO2)
sedimentary
Chert (often called Flint when dark)
Sedimentary cryptocrystalline quartz (SiO2)
sedimentary
Carnelian (Chalcedony)
SiO2 (Silicon Dioxide - Microcrystalline Quartz)
mineral
Chert (Chalcedony/Agate Pebble)
Cryptocrystalline Silica (SiO2)
sedimentary
Chert (Chalcedony/Agate)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Druzy Quartz on Chert/Siltstone
Silicon Dioxide (SiO2) on Microcrystalline Silica/Siltstone matrix
sedimentary
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Druzy Quartz on Limestone
Silicon Dioxide (SiO2)
mineral
Chert (Common Opal or Agate)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint nodule)
Silicon Dioxide (SiO2)
sedimentary