Rock Identifier

Category

Mineraloid Like Synthetic Material

Browse mineraloid like synthetic material specimens identified by the Rock Identifier community.

Learn about Mineraloid Like Synthetic Material in the encyclopedia

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Shungite

Zincite

Opalite

Lead Feldspar

Peat

Blue Line Jasper

Lime Green Tourmaline

Lime Green Tourmaline

Argillite

Needle Tourmaline

Needle Tourmaline

Calc-Silicate Rock

Calc-Silicate Rock

Color-Change Tourmaline

Color-Change Tourmaline

Chert (Jasper/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Chalcedony variety)

Microcrystalline Quartz (SiO2)

Fossiliferous Jasper / Miriam Stone / Elephant Skin Jasper (Biogenic Chalcedony / Silicified Fossiliferous Limestone) — fossil

Fossiliferous Jasper / Miriam Stone / Elephant Skin Jasper

Biogenic Chalcedony / Silicified Fossiliferous Limestone

Chert (specifically Tan Chert or Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Tan Chert or Flint)

Silicon Dioxide (SiO2)

Yellow chalcedony (likely heat-treated or resin-coated) (Microcrystalline quartz, SiO₂) — mineral

Yellow chalcedony (likely heat-treated or resin-coated)

Microcrystalline quartz, SiO₂

Chert (variously known as Flint or River Pebble) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (variously known as Flint or River Pebble)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Serpentinite (Serpentinite (composed primarily of minerals in the serpentine group: (Mg,Fe)3Si2O5(OH)4)) — metamorphic

Serpentinite

Serpentinite (composed primarily of minerals in the serpentine group: (Mg,Fe)3Si2O5(OH)4)

Fossilized Bone (Permineralized Vertebrate Bone) — fossil

Fossilized Bone

Permineralized Vertebrate Bone

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

Chert (Flint)

Silicon Dioxide (SiO2)

Fossilized Shark Tooth (Carcharhinus sp. (likely Bull or Requiem shark family)) — sedimentary

Fossilized Shark Tooth

Carcharhinus sp. (likely Bull or Requiem shark family)

Sandstone with Iron Weathering (Quartz Arenite / Weathered Sandstone) — sedimentary

Sandstone with Iron Weathering

Quartz Arenite / Weathered Sandstone

Limestone (River Pebble) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (River Pebble)

Calcium Carbonate (CaCO3)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Amygdaloidal Basalt (Amygdaloidal Basalt containing Zeolite or Quartz (SiO2/Silicates)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt containing Zeolite or Quartz (SiO2/Silicates)

Chert (Jasper variety) (Silicon dioxide (SiO2)) — sedimentary

Chert (Jasper variety)

Silicon dioxide (SiO2)

Sandstone (with Limonite/Iron Staining) (Arenite (SiO2 based) with FeO(OH) staining) — sedimentary

Sandstone (with Limonite/Iron Staining)

Arenite (SiO2 based) with FeO(OH) staining

Sandstone (Quartzose Sandstone) (Arenite (SiO2 based)) — sedimentary

Sandstone (Quartzose Sandstone)

Arenite (SiO2 based)

Sandstone (Clastic Sedimentary Rock (composed of SiO2 grains)) — sedimentary

Sandstone

Clastic Sedimentary Rock (composed of SiO2 grains)

Petrified Wood (Silicified Wood (primarily SiO₂ / Silicon Dioxide)) — mineral

Petrified Wood

Silicified Wood (primarily SiO₂ / Silicon Dioxide)

Conglomerate (Red Sandstone variety) (Clastic Sedimentary Rock (Conglomeratic Sandstone)) — sedimentary

Conglomerate (Red Sandstone variety)

Clastic Sedimentary Rock (Conglomeratic Sandstone)

Sandstone (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Sandstone (with Calcite or Silica veins) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with Calcite or Silica veins)

Clastic sedimentary rock (primarily SiO2)

Chert (Flint) with Limestone Coating (Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) cortex) — sedimentary

Chert (Flint) with Limestone Coating

Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3) cortex

Sandstone (Weathered) (Arenite (typically SiO2 as quartz grains)) — sedimentary

Sandstone (Weathered)

Arenite (typically SiO2 as quartz grains)

Orbicular jasper / brecciated jasper (Silica-rich microcrystalline quartz (chalcedony), commonly with iron oxides and altered volcanic fragments) — metamorphic

Orbicular jasper / brecciated jasper

Silica-rich microcrystalline quartz (chalcedony), commonly with iron oxides and altered volcanic fragments

Chert (Yellow Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper)

Microcrystalline Quartz (SiO2)

Blue Aventurine (Silicon Dioxide (SiO2) with inclusions of Dumortierite) — Mineral (Variety of Quartz)

Blue Aventurine

Silicon Dioxide (SiO2) with inclusions of Dumortierite

Mineral (Variety of Quartz)

Sandstone (with Iron Staining) (Arenite (SiO2 with Fe2O3/FeOOH impurities)) — sedimentary

Sandstone (with Iron Staining)

Arenite (SiO2 with Fe2O3/FeOOH impurities)

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

Chert / Flint Nodule

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Chert (Common Opal/Jasper variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Jasper variety)

Silicon Dioxide (SiO2)

Sandstone (Quartzose Sandstone) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Arenite (primarily SiO2)

Chert (Flint) (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Chert (specifically Flint or Common Opal variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Common Opal variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Chert (Microcrystalline Quartz, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Quartz, SiO2)

Chert (Chert / Flint) (Silicon dioxide (SiO2) - Microcrystalline quartz) — sedimentary

Chert (Chert / Flint)

Silicon dioxide (SiO2) - Microcrystalline quartz

Picture Jasper (SiO2) — mineral

Picture Jasper

SiO2

Sandstone (Quartzose) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (composed primarily of SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

River Pebble (Quartz-rich) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

River Pebble (Quartz-rich)

Silicon Dioxide (SiO2) with various inclusions

Sandstone (Banded) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Banded)

Clastic sedimentary rock (primarily SiO2)

Sandstone (with Iron Staining) (Arenite (SiO2 predominantly)) — sedimentary

Sandstone (with Iron Staining)

Arenite (SiO2 predominantly)

Sandstone (River Cobble) (Sandstone (composed predominantly of SiO2 - Quartz)) — sedimentary

Sandstone (River Cobble)

Sandstone (composed predominantly of SiO2 - Quartz)