Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Category
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
White Marble
Recrystallized Calcite (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (Siliclastic sedimentary rock)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) with iron oxide inclusions
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Sandstone (Green/Yellow Siltstone variant)
Arenite or Siltstone (primarily SiO2 with mineral staining)
Fossiliferous Limestone (Coquina / Shell Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Chert (specifically Yellow Jasper)
Sedimentary Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with high iron inclusion
Concretion
Septarian concretion (likely containing Calcite or Siderite)
Jasper pebble
Silicon dioxide (SiO2) with iron oxide inclusions
Sandstone (likely Quartzose)
Sandstone (Principally SiO2)
Jasper (likely Lake Superior Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Sandstone
Arenite (composed primarily of SiO2)
Jasper (Green Jasper / Chert)
Silicon Dioxide (SiO2) with iron/clay inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Milky Quartz with Chlorite/Epidote inclusions
Silicon Dioxide (SiO2) with phyllosilicate/sorosilicate inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Quartz
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (with Iron Oxides)
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Limonitic Sandstone (Stained Sandstone)
Clastic Sedimentary Rock with Iron Oxide (Limonite/Goethite) staining
Gneiss (specifically a Granitic Gneiss)
Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)
Agate Geode Slice (with Druzy Quartz)
Silicon Dioxide (SiO2)
Gneiss (specifically a Granitic Gneiss)
Gneiss (Composition: Quartz, Feldspar, Mica)
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 staining)
Sandstone Pebble
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Sandstone (mainly SiO2 with Fe2O3 staining)
Ferruginous Sandstone (Ironstone)
Arenite with Limonite/Goethite cement
Sandstone (Ferruginous)
Arenite (composed primarily of SiO2 with Fe2O3 cement)
Clear Quartz
Silicon Dioxide (SiO2)
Shale
Shale (comprised mostly of clay minerals and quartz)
Sandstone
Arenite (SiO2 with various cementing agents)
Quartz Geode
Silicon Dioxide (SiO2)
Calcite Geode
Calcium Carbonate (CaCO3)
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
Pumice
Pumice (volcanic rock)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
Jasper with Hematite (Red Jasper)
Silicon Dioxide with Iron Oxide (SiO2 and Fe2O3)
Sandstone (Red Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide)
Banded Gneiss with Quartz Vein
Foliated Metamorphic Rock (Gneiss)