Amethyst
Amethyst (SiO2 with Iron impurities)
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Amethyst
Amethyst (SiO2 with Iron impurities)
Amazonite
Amazonstone (KAlSi3O8)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Dragon Vein Agate (Dyed)
SiO2
Ironstone Concretion / Limonite Specimen
Goethite and Limonite (Hydrous Iron Oxides)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Vesicular Basalt with Lichen
Vesicular Basalt
Fluorite (Fluor-spar)
Calcium Fluoride (CaF2)
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Aventurine
Silicon Dioxide (SiO2) with inclusions
Siltstone
Siltstone (primarily SiO2 with Al2O3 and Fe2O3)
Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Snowflake Obsidian
Vitreous volcanic rock with Cristobalite inclusions (mostly SiO2)
Amazonite
Amazonite (KAlSi3O8)
Golden Healer Quartz
Ferruginous Quartz (SiO2 with Fe2O3 inclusions)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of Manganese or Iron oxide
Carnelian Agate
Carnelian (SiO2 with iron oxide impurities)
Limonite (Iron-rich Siltstone / Sandstone base)
Hydrous ferric oxide mixture (FeO(OH)·nH2O)
Prehnite
Prehnite, Ca2Al(AlSi3O10)(OH)2
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Agate (Moss or Dendritic Agate)
Chalcedony (Silicon Dioxide, SiO2)
Carnelian
SiO2 (Silicon Dioxide) - Translucent Chalcedony
Green Aventurine
Quartz variant (SiO2) with Fuchsite inclusions
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite (Fe2O3·nH2O) inclusions
Botryoidal Chalcedony (Agate/Chert Nodule)
Chalcedony (SiO2)
Red Jasper
Jasper (SiO2, Silicon Dioxide with Iron inclusions)
Amethyst
Silicon dioxide (SiO2) with iron impurities
Amazonite
Potassium Feldspar (KAlSi3O8)
Carnelian
Carnelian (Silica/Chalcedony, SiO2)
Jasper (specifically Yellow/Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Carnelian Agate
Red Chalcedony (SiO2 with Iron Oxide impurities)
Plume Agate or Moss Agate
Silicon dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Red Jasper (specifically Brecciated Jasper)
Silicon Dioxide (SiO2) with Hematite inclusions
Blue Dyed Agate Slice
Silicon Dioxide (SiO2) with artificial pigment
Sunstone (Orthoclase Feldspar variant)
Orthoclase (KAlSi3O8) with inclusions