Amygdaloidal Basalt
Amygdaloidal Basalt (containing quartz/agate or zeolite fill)
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Amygdaloidal Basalt
Amygdaloidal Basalt (containing quartz/agate or zeolite fill)
Mineral and Rock Collection (Assorted)
Mixed collection including Quartz (SiO2), Jasper (SiO2 with impurities), Rose Quartz, and Aventurine
Sandstone with Dendritic Inclusions
Quartzose Sandstone
Sandstone
Sedimentary Rock (Quartz arenite)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Gossanous Sandstone (likely Terrestrial)
Arenite with Iron-Oxide inclusions
Sandstone
Sandstone (clastic sedimentary rock)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide cement)
Sandstone
Arenite (SiO2 based clastic rock)
Sandstone/Quartzite
Sedimentary Rock (composed mainly of SiO2)
Sandstone (Pebble)
Sandstone (principally SiO2 with iron oxide impurities)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone (Calcareous or Ferruginous)
Clastic sedimentary rock (SiO2 with CaCO3 or Fe2O3 cement)
Sandstone (likely Arkosic or Lithic Sandstone)
Arenite (SiO2 based with mineral inclusions)
Chalcedony (Agate / Moss Agate)
Silicon Dioxide (SiO2)
Granular Sandstone
Arenite (variable composition, primarily SiO2)
Sandstone
Arenite
Pitted Sedimentary Rock / Cupstone
Sedimentary rock with weathering pit (arenite / sandstone)
Sandstone
Arenite
Sandstone
Arenite (SiO2 principal component)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (lithic/quartz variant)
Clastic sedimentary rock (SiO2 predominant)
Sandstone
Arenite (Sedimentary rock composed of sand-sized grains)
Sandstone
Clastic Sedimentary Rock
Sandstone (Greywacke/Siltstone variant)
Arenite / Wacke (SiO2 with diverse mineral inclusions)
Garnet-bearing gneiss
Quartz–feldspar–mica gneiss with iron-rich garnet (commonly almandine)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone
Arenite (typically SiO2 + others)
Sandstone (likely Graywacke or Lithic Sandstone)
Clastic Sedimentary Rock
Sandstone
Arenite
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (with potential fossil inclusions)
Clastic sedimentary rock (primarily SiO2)
Conglomeratic Sandstone
Clastic Sedimentary Rock
Sandstone
Arenite
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (Siliclastic sedimentary rock), SiO2 + various minerals
Sandstone
Arenite (SiO2 based)
Common Pebble / Sedimentary Rock Fragment
Lithified clastic sediment
Tumbled red jasper
Jasper, microcrystalline quartz (SiO₂), commonly colored by iron oxides