Diabase (also known as Dolerite)
Diabase / Dolerite
Category
Browse man made silicate (anthropogenic glass) specimens identified by the Rock Identifier community.
Diabase (also known as Dolerite)
Diabase / Dolerite
Granite
Course-grained intrusive igneous rock
Sandstone (with potential mineral inclusions)
Clastic sedimentary rock (primarily Quartz, SiO2)
Granite River Rock
Phaneritic Felsic Igneous Rock (Granite)
Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Riverstone (Water-worn Quartzite)
Quartzite (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Red Quartzite
Quartzite (SiO2)
Quartzite Pebble
Quartzite (primarily SiO2)
Fossil Coral
Scleractinia (Anthos), primarily Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 with various cementing agents)
Sandstone
Arenite (SiO2 based)
Chert (Yellow/Brown variety)
Chert (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (primarily SiO2)
Milky Quartz with Chlorite/Mica inclusions
Silicon Dioxide (SiO2) with inclusions
Sandstone
Clastic sedimentary rock (primarily SiO2)
Quartzite pebble
Quartzite (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Granite
Granitoid
Peridot
Olivine ((Mg, Fe)2SiO4)
Banded Chert in Matrix
Microcrystalline Quartz (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2-rich metamorphic rock)
Quartzite
Quartzite (primarily SiO2)
Quartzite Pebbler
Quartzite (primarily SiO2)
Quartzite River Pebble
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Sandstone
Arenite (Siliclastic sedimentary rock, primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (variously Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO₂)
Quartzite Pebble
Metamorphosed Sandstone (SiO2)
Chert (and Limestone)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Arenite (SiO2 principal component)
Peridot
Olivine ((Mg, Fe)2SiO4)