Tumbled picture jasper
Microcrystalline quartz (SiO₂), commonly with iron-oxide and clay inclusions
mineral
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
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Dalmatian Jasper
Peralkaline Feldspar Rhyolite
igneous
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
metamorphic
Ocean Jasper
Silicon dioxide with impurities (SiO2 + impurities)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Sandstone
Arenite
sedimentary
Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Polished banded gneiss
Biotite–quartz–feldspar gneiss, locally migmatitic
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Blue Quartz (Blue Chalcedony/Dumortierite Quartz)
Silicon Dioxide (SiO2) with inclusions (typically Dumortierite Al7(BO3)(SiO4)3O3)
mineral
Sandstone
Arenite (SiO2 based)
sedimentary
Raw quartz crystal
Quartz (silicon dioxide, SiO₂), likely milky or iron-stained quartz
mineral
Sandstone (Stream-rounded)
Arenite (SiO2 based)
sedimentary
Sandstone (likely Fossiliferous)
Arenite / Fossiliferous Sandstone (SiO2 composition)
sedimentary
Basalt with Granite Inclusions (Xenoliths)
Mafic igneous rock (Basalt) with Sialic minerals
igneous
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
metamorphic
Red Jasper (Chert)
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
mineral
Jasper
Silicon Dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Jasper (likely brecciated jasper)
Microcrystalline quartz/chalcedony (SiO₂), with possible iron-oxide coloring
sedimentary
Yellow Jasper / Chalcedony
Silicon Dioxide (SiO2) with iron inclusions
mineral
Jasper Rose Quarts / Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Sandstone (Ferruginous)
Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)
sedimentary
Jasper (Banded Jasper / Chert)
Silicon Dioxide (SiO2 with iron oxide inclusions)
sedimentary
Gneiss
Metamorphic Rock (Gneissic texture)
metamorphic
Yellow Calcite (Carved Egg)
Calcite (Calcium Carbonate, CaCO3)
mineral
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Basalt with Secondary Mineralization (Likely Zeolites or Calcite)
Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)
igneous
Chert Breccia (Yellow Jasper)
Silicon Dioxide (SiO2) - Brecciated Chert
sedimentary
Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Sandstone
Arenite (primarily composed of SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide staining)
sedimentary
Agate Geode with Quartz
Silicon Dioxide (SiO2)
mineral
Moss Agate Sphere
Silicon Dioxide (SiO2) with inclusions
mineral
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Biotite-bearing gneiss
Mica gneiss, composed mainly of quartz, feldspar, and biotite mica
metamorphic