Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Category
Browse sedimentary mineral specimens identified by the Rock Identifier community.
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Flint
SiO2 (Microcrystalline Quartz / Chert)
Glauconite (Greensand)
Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Red Jasper (or Banded Jasper)
Silicon Dioxide (SiO2 with Hematite impurities)
Quartz Pebble
Silicon Dioxide (SiO2)
Fossiliferous Shale
Sedimentary Clastic Rock with fossil inclusions (likely Brachiopod or Bivalve impressions)
Sandstone
Arenite (primarily SiO2)
Agate
Silicon Dioxide (SiO2)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Heart-shaped pebble)
Sedimentary Quartz Sandstone
Common Opal / Chert
Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Common Pebble / Sedimentary Rock Fragment
Lithified clastic sediment
Sandstone
Sedimentary Clastic Rock
Sandstone
Clastic Sedimentary Rock
Flagstone
Sedimentary Sandstone / Flagstone
Jasper
Silicon Dioxide (SiO2)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone
Arenite (Silicon Dioxide with various mineral cements)
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Limonite / Ironstone
Hydrated Iron Oxide (FeO(OH)·nH2O)
Sandstone
Arenite (Clastic Sedimentary Rock)
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Sandstone
Arenite (lithic or quartz sandstone)
Milky Quartz
Silicon Dioxide (SiO2)
Gravel
Unconsolidated rock fragments / detrital sediment
Sedimentary River Rock
Siliciclastic Sedimentary Rock (Quartzite or Sandstone pebble)
Fluorite
Calcium Fluoride (CaF2)
Quartz (Pink / Ferruginous)
Silicon Dioxide (SiO2)
Sandstone or Mudstone with Iron Staining
Ferruginous Sandstone/Mudstone
Sandstone Pebble
Sedimentary Rock (Quartz Arenite)
Mineral and Rock Collection (Assorted)
Mixed collection including Quartz (SiO2), Jasper (SiO2 with impurities), Rose Quartz, and Aventurine
Geode
Silicon dioxide (Quartz/Chalcedony) concretion
Quartzite Sandstone / Quartz Sandstone
Quartz Sandstone (SiO2 with minor mineral impurities)
Red Jasper (or Agate/Jasper mixture)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Veined Quartzite / Vein-filled Sedimentary Rock
Siliciclastic rock with iron oxide-filled fractures
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)