Turquoise in Matrix
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Category
Sedimentary (If Natural Jasper) Or Artificial (If Slag)
Browse sedimentary (if natural jasper) or artificial (if slag) specimens identified by the Rock Identifier community.
Learn about Sedimentary (If Natural Jasper) Or Artificial (If Slag) in the encyclopedia
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Jasper and Ironstone (likely Jasperized Ironstone)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
sedimentary
Fossiliferous Limestone / Fossil Fragment
Calcium Carbonate Matrix with Biogenic Inclusions (CaCO3)
fossil
Shale with Siltstone layering
Sedimentary Clastic Rock (Mudstone/Shale)
sedimentary
Cherry Creek Jasper (also known as Red Creek Jasper or Cherry Creek Agate)
Jasper, microcrystalline quartz (SiO₂)
Sedimentary Rock
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2)
sedimentary
Brown Jasper
Silicon Dioxide (SiO2)
sedimentary
Chert (Mookaite style Jasper)
Microcrystalline Quartz (SiO2) with Hematite/Goethite inclusions
sedimentary
Jasper (Red/Yellow Jasper Pebble)
Silicon Dioxide (SiO2 with Iron Oxide inclusions)
sedimentary
Tiger Iron
Tiger Iron (Hematite, Red Jasper, and Tiger's Eye)
metamorphic
Sandstone (Pebble)
Arenite (composed primarily of SiO2)
sedimentary
Granite
Intrusive Igneous Rock
igneous
Chert or flint fragment
Microcrystalline quartz (SiO₂), commonly chalcedony with possible clay/iron-oxide impurities
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone
Arenite (SiO2 variety)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Red Jasper
Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)
mineral
Yellow Jasper (Chert)
Silicon Dioxide (SiO2) with Iron Oxide impurities
mineral
Asphalt
Asphalt concrete (engineered material, not a naturally occurring rock/mineral in this form)
Sedimentary
Vein Quartz in Basalt or Chert
Silica-veined dark lithic rock (Quartz veins in microcrystalline matrix)
sedimentary
Banded Sandstone / Quartzite Pebble
Sedimentary quartz arenite with liesegang banding
sedimentary
Sandstone pebble
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Asphalt / Bituminous Aggregate
Bituminous mixture (Hydrocarbon-based sediment)
sedimentary
Sandstone
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite (SiO2 based typically)
sedimentary
Quartz Pebble / River Siltstone
Silicon Dioxide (SiO2) / Fine-grained Sedimentary Rock
sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
sedimentary
Cobblestones (Basalt/River Rock)
Polished lithic fragments and rounded pebbles
sedimentary
Shiva Lingam (Sandstone Pebble)
Ferruginous Sandstone (SiO2 with Fe-oxides)
sedimentary
Shale
Shale (Consolidated fine-grained clay/silt)
sedimentary
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) with polymer resins
Sedimentary-like (Industrial Composite)
Sandstone (specifically Banded Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Hag Stone
Perforated Flint / Chert Node
sedimentary
Sandstone (with Iron Staining)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
sedimentary
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
sedimentary
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Chert (Jasper / Petrified Wood)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper with Quartz Druzy
Silicon Dioxide (SiO2)
sedimentary
Smoky Quartz / Chalcedony
Silicon Dioxide (SiO2)
mineral