Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Category
Browse mineral (primary constituent) specimens identified by the Rock Identifier community.
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Moonstone
Orthoclase Feldspar (containing Albite lamellae), (KAlSi3O8)
Petrified Wood
Silicified Wood (SiO2)
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
Amethyst
Quartz (Silicon Dioxide) with Iron impurities, SiO2
Quartz Geode Fragment
Silicon Dioxide (SiO2)
Moss Agate
Chalcedony (SiO2) with inclusions of hornblende or chlorite
Rhodochrosite
Manganese carbonate (MnCO3)
Sunstone
Oligoclase (a plagioclase feldspar variant), (Na,Ca)(Al,Si)4O8
Amethyst (Chevron or Banded variety)
Silicon Dioxide (SiO2) with iron impurities
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with inclusions
Sunstone
Orthoclase or Oligoclase Feldspar (Na,Ca)(Al,Si)4O8
Amethyst
Amethyst (Silicon Dioxide with Iron impurities), SiO2
Tree Agate
Silicon Dioxide (SiO2) with dendritic inclusions
Sandstone (Ferruginous)
Arenite (SiO2 with Fe2O3 cement)
Orange Calcite
Calcium Carbonate (CaCO3)
Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3/FeO(OH) cementing agents)
Red Jasper (Chert)
Silicon Dioxide (SiO2) with impure Iron Oxides
Pyritic Gneiss
Metamorphic Gneiss with Pyrite inclusions
Sodalite
Na8(Al6Si6O24)Cl2
Amazonite
Microcline (KAlSi3O8) with trace lead
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nHeO)
Coquina with Calcite Crystals
Calcareous Bioclastic Grainstone (CaCO3)
Yellow Jasper
Silicon Dioxide with Limonite/Goethite inclusions (SiO2)
Herkimer Diamond
Quartz (Silicon Dioxide, SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Fuchsite in Quartz
K(Al,Cr)2(AlSi3O10)(OH)2 in SiO2
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
Citrine
Silicon Dioxide (SiO2)
K2 Jasper (K2 Granite)
Azurite in Granite (Biotite Granite containing Azurite)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Amethyst (Tumbled)
Amethyst (Silicon Dioxide, SiO2 + Fe4+)
Desert Rose
Gypsum (variety Selenite) or Barite, CaSO4·2H2O
Quartz Geode
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Ferruginous Quartz
Quartz (Silicon Dioxide) - SiO2 with Iron Oxide inclusions
Aragonite (Botryoidal/Coralloidal variety)
Aragonite (CaCO3)
Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
Blue Lace Agate
Chalcedony (SiO2) with trace minerals