Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
sedimentary
Category
Sedimentary Or Metamorphic (Base Substrate)
Browse sedimentary or metamorphic (base substrate) specimens identified by the Rock Identifier community.
Learn about Sedimentary Or Metamorphic (Base Substrate) in the encyclopedia
View all →
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Quartzite Pebbles
Meta-quartzite (SiO2)
metamorphic
River Stone (River Pebble)
Stream-rounded clast (likely Quartzite or Siltstone)
sedimentary
Cardstock (Paper)
Cellulose (C6H10O5)n
sedimentary (man-made)
General Gravel (River Rock/River Stones)
Mixed Lithic Sediments (Conglomerate Clasts)
sedimentary
Mixed Pebbles
Polylithic Rock Fragments
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
River Rock (Basalt/Greywacke pebbles)
Fluvial gravel primarily composed of Mafic Volcanic Rock (Basalt) or Lithic Sandstone (Greywacke)
igneous and sedimentary
River Pebble (Likely Quartzite or Chert)
Quartzite (primarily SiO2)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Basalt with Plagioclase or Quartz Inclusion
Melanocratic Basalt with Porphyritic Inclusion
igneous
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
River Pebble
Polished Siliceous Rock
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Slate
Foliated metamorphic rock
metamorphic
Siltstone Pebble
Siltstone (composed of siliciclastic grains)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
River Pebbles (Basalt and Graywacke/Limestone)
Mafic Volcanic Rock / Impure Sandstone
igneous and sedimentary
River Stone (likely Quartzite or Chert)
Recrystallized Silicon Dioxide (SiO2)
metamorphic
Seashell Fragment (Aragonite/Calcite)
Calcium Carbonate (CaCO3) - Shell fragment
sedimentary
River Pebble (Greywacke / Sandstone Pebble)
Indurated Sandstone / Greywacke Pebble
sedimentary
River Pebbles (White Quartz and Basalt mix)
Mixed Clastic Sedimentary Assemblage (SiO2 and Mafic Volcanics)
sedimentary
River Pebble (Chalcedony / Quartzite)
Silicon Dioxide (SiO2)
sedimentary
River Pebble (Quartz-rich)
Silicon Dioxide (SiO2) with various inclusions
sedimentary
Quartz Pebble
Silicon dioxide (SiO2)
sedimentary
River Pebble (Siltstone / Fine-grained Sandstone)
Sedimentary Pebble (Siliclastic)
sedimentary
River Rocks (Basalt and Sedimentary Stones)
Mafic Igneous Rock (Basalt) and Clastic Sedimentary Rock
igneous and sedimentary
River Pebble (Siltstone/Mudstone)
Clastic sedimentary rock
sedimentary
River Pebble
Lithified rock fragment (variable composition)
sedimentary
River Rock
Silica-rich water-worn rock / Quartzite
sedimentary
Basalt Pebble with Epidote/Olivine
Vitreous Basalt (SiO2 with Ca/Mg/Fe silicates)
igneous
Basalt (Water-worn Pavement Stone)
Basalt (Mafic Extrusive Igneous Rock)
igneous
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
River Stone (Quartzite/Siltstone)
Quartzite (primarily SiO2)
metamorphic
Quartzite (River Siltstone variety)
Quartzite (SiO2)
metamorphic
Lava Rock Substrate
Scoria (Basaltic Rock)
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
River Pebble
Siliceous / Quartzite Lithology
sedimentary
Carbonate Beach Sand
Biogenic Carbonate Sediment (CaCO3)
sedimentary