Pink Calcite (Mangano Calcite)
Calcium Carbonate (CaCO3)
Category
Browse anthropogenic (man made industrial deposit) specimens identified by the Rock Identifier community.
Pink Calcite (Mangano Calcite)
Calcium Carbonate (CaCO3)
Yellow Quartz (Chalcedony/Citrine Pebble)
Silicon Dioxide (SiO2)
Rose Quartz
SiO2 (Silicon Dioxide)
Green Moss Agate
Silicon Dioxide with inclusions (SiO2 + Mn/Fe)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxides
Zebra Jasper (Zebra Stone)
Tumbled Silicon Dioxide (SiO2) with impurities
Dendritic Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Moss Agate
Silicon Dioxide with inclusions (SiO2)
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
Dendritic Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxide
Moss Agate
Chalcedony (SiO2) with inclusions of hornblende or chlorite
Tree Agate
Silicon Dioxide (SiO2) with dendritic inclusions
Sandstone Concretion
Ferruginous Sandstone Concretion (Primarily SiO2 with Iron Oxide cement)
Amygdaloidal Basalt
Amygdaloidal Basalt (with secondary mineral infilling)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
Amethyst and Peridot
Amethyst (SiO2 with iron impurities) and Peridot ((Mg, Fe)2SiO4)
Amethyst (Geode)
Silicon Dioxide (SiO2) with iron impurities
Sandstone (specifically Lithic or Quartz Arenite)
Arenite (composed primarily of SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Sandstone (Weathered)
Arenite (primarily SiO2)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock (primarily SiO2 with Feldspar)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (Lithic Sandstone)
Satin Spar (often marketed as Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Chalcedony
Chalcedony (SiO2)
Arsenopyrite in Quartz Matrix
Arsenopyrite (FeAsS)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Nephrite Jade
Ca2(Mg,Fe)5Si8O22(OH)2
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Yellow Calcite
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Red Jasper (Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Quartzite
Quartzite (primarily SiO2)
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)