Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Greenstone
Greenschist (containing chlorite, epidote, and actinolite)
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Ironstone Nodules / Siderite Concretion
Siderite (FeCO3) / Ferruginous Septarian Concretion
Red Sandstone (Arkose)
Clastic Sedimentary Rock (Lithic Arkose)
Jasper
Jasper (Silicon Dioxide, SiO2)
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Hag Stone
Perforated Sedimentary Rock (typically Limestone or Sandstone)
Olivine Basalt
Mafic Volcanic Rock (rich in (Mg, Fe)2SiO4)
Basalt with Quartz/Calcite Inclusions
Mafic Volcanic Rock (Fe-Mg silicate rich)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Black Pearl (Tahitian Type)
Aragonite / Conchiolin composite (CaCO3)
Sandstone
Arenite (primarily SiO2)
Wonderstone
Banded Rhyolite (SiO2 with impurities)
Quartzite
Quartzite (Primary mineral: Quartz, SiO2)
Shale
Fissile mudstone (rich in clay minerals and quartz)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartz (Massive Quartz or Quartzite)
Silicon Dioxide (SiO2)
Quartz / Quartzite Fragment
Silicon Dioxide (SiO2)
Sodalite Syenite
Sodalite-bearing Syenite (Na8(Al6Si6O24)Cl2)
Quartz Vein in Host Rock (Likely Slate or Shale)
Hydrothermal Quartz (SiO2) in Pelitic host rock
Scoria (Red Lava Rock)
Scoria (Vesicular Basalt/Andesite)
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
Petrified Wood
Silicified Wood (primarily SiO2)
Jasper with Hematite Inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
Sandstone
Arenite (primarily Quartz, SiO2)
Pyrite
Iron Sulfide (FeS2)
Basalt with Quartz/Calcite Veins
Amygdaloidal Basalt (SiO2 or CaCO3 inclusions)
Snowflake Obsidian
Vitreous Volcanic Glass (Siliceous Obsidian with Cristobalite inclusions)
Sandstone (Ferruginous)
Arenite with Iron Oxides
Pearl (in a decorative hair comb setting)
Calcium carbonate (CaCO3) primarily as Aragonite, bonded with Conchiolin
Granitic Pegmatite
Coarse-grained Igneous Rock (Granitic composition: KAlSi3O8, SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Mica)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with tarnish
Milky Quartz
Silicon Dioxide (SiO2)
Pearl
Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3
Pink Quartz / Rose Quartz
Silicon Dioxide (SiO2)
Pink Amethyst Geode
Silicon Dioxide (SiO2) with Hematite/Iron impurities
Azurite
Azurite (Cu3(CO3)2(OH)2)
Jasper
Silicon Dioxide (SiO2) with impurities