Polished ocean jasper (orbicular jasper)
Silicified volcanic rock; chiefly microcrystalline quartz/chalcedony (SiO₂), with iron oxides and other alteration minerals
sedimentary
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
Learn about Mineral Or Sedimentary Rock (With Mineral Inclusions) in the encyclopedia
View all →
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Milky Quartz Geode or Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
mineral
Vesicular Basalt
Vesicular Basalt
igneous
Sandstone (likely Quartzose Sandstone)
Arenite
sedimentary
Granitic Gneiss
Gneiss (containing Potassium Feldspar and Quartz)
metamorphic
Fossiliferous Siltstone
Clastic Sedimentary Rock with Fossil Inclusions
sedimentary
Ferruginous Quartz
Quartz (Silicon Dioxide, SiO2) with Iron Oxide Inclusions
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
Polished/tumbled jasper (likely ocean or brecciated jasper)
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and darker mineral inclusions
mineral
Agate (Puddingstone style)
Silicon Dioxide (SiO2) with impurities
mineral
Sandstone (likely Quartzose Sandstone)
Arenite (SiO2 predominantly)
sedimentary
Gneiss
Gneissic Metamorphic Rock (Mineral composition: Quartz, Feldspar, Amphibole/Biotite)
metamorphic
Sandstone
Arenite (Sedimentary rock comprising sand-sized grains)
sedimentary
Brecciated jasper/chalcedony (iron-stained silica)
Microcrystalline quartz, SiO₂, with iron-oxide inclusions
mineral
Sandstone (likely Quartzose Sandstone with mineral staining)
Arenite (composed mainly of SiO2)
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
River Stone (Sandstone with Oxide Banding)
Arenite with Iron/Manganese Oxide inclusions
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Tumbled brecciated jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions
mineral
Copper Ore / Altered Granodiorite
Cupriferous rock with silicate gangue
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide with Hematite impurities (SiO2 + Fe2O3)
mineral
Polished brecciated jasper
Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay-mineral inclusions
gemstone
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
sedimentary
Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Sandstone
Arenite
sedimentary
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Fossil-bearing sandstone or mudstone
Indeterminate sedimentary matrix with a possible bivalve or shell fossil
fossil
Banded Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Polished yellow jasper
Jasper, microcrystalline quartz (SiO₂), commonly containing iron oxides and other silicates
mineral
Quartz Druzy Geode Fragment
Silicon Dioxide (SiO2)
mineral
Sandstone (with banding/weathering)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone (likely Quartzose)
Arenite (primarily SiO2)
sedimentary
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
metamorphic
Laterite
Laterite (Ferricrete)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary