Sedimentary (Microcrystalline Silicate)

Browse sedimentary (microcrystalline silicate) specimens identified by the Rock Identifier community.

Quartz

Quartz (SiO₂)

Botryoidal Chalcedony

Chalcedony (SiO2)

Quartz Geode/Druzy Quartz

Quartz (SiO₂)

Quartzite

Laterite

Laterite (no specific mineral formula as it's a rock type)

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

Aquamarine and clear quartz

Aquamarine (Be3Al2Si6O18), Quartz (SiO2)

Green Aventurine and Clear Quartz

Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)

Quartzite

Quartzite (primarily composed of SiO O₂)

River Pebble (Likely Chert or Fine-Grained Sandstone/Quartzite)

Siliciclastic clast (likely Chert or Quartzarenite/Quartzite pebble)

Pebble (likely Quartzite or Chert)

Clastic Sediment, potentially composed of SiO₂ (Quartz)