Ironstone Concretion / Goethite-Hematite Nodule
Goethite/Hematite (α-FeO(OH) / Fe2O3)
Category
Browse not a rock or mineral specimens identified by the Rock Identifier community.
Ironstone Concretion / Goethite-Hematite Nodule
Goethite/Hematite (α-FeO(OH) / Fe2O3)
Sandstone (Ferruginous)
Arenite with iron oxide cement (Fe2O3)
Amygdaloidal Basalt
Amygdaloidal Basalt
Liesegang Banded Sandstone (Wonderstone)
Ferruginous Sandstone with Liesegang Rings
Sandstone with Quartz Vein
Quartzose Sandstone with Hydrothermal Quartz
Sandstone
Arenite
Sandstone pebble
Sandstone (siliciclastic sedimentary rock)
Sandstone (Whetstone/Sharpening Stone)
Siliciclastic Sandstone (SiO2 dominant)
Sandstone
Sandstone (SiO2-dominated clastic rock)
Sandstone
Sedimentary Rock (Quartz arenite/Arkose)
Sandstone Pebble
Quartzose Sandstone (Sedimentary Rock)
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
Sandstone
Sandstone (clastic sedimentary rock, predominantly SiO2)
Ironstone Concretion
Ironstone (Limonite/Goethite/Hematite mixture)
Grey Basalt or Andesite with Veining
Intermediate to Mafic Extrusive Igneous Rock with Quartz/Calcite Veins
Sandstone
Arenite
Sandstone
Arenite
Sandstone River Pebble
Arenite (SiO2 predominantly)
Sandstone (likely Arkosic or Ferruginous)
Arenite (SiO2 with iron oxides or feldspar)
Tumbled Agate
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 principal)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Banded Agate (Tumbled)
Silicon Dioxide (SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite
Jasper (Green Jasper/Heliotrope variety)
Silicon Dioxide (SiO2)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone (Beach Pebble)
Clastic sedimentary rock (primarily Quartz and Feldspar)
Sandstone
Arenite (SiO2 principal)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
Sandstone (likely Siltstone)
Arenite or Siltstone (high SiO2 content)
Sandstone
Arenite (composed primarily of SiO2)
Carnelian Agate
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based with primary clasts 0.0625 to 2 mm)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 primarily)