Example image of eyePlorer eyePlorer map for 'Boracite': Borate mineral Boron Chlorine Magnesium Oxygen Crystal system Orthorhombic crystal system Octahedron Cubic crystal system Crystal twinning Anhydrite Gypsum Mohs scale of mineral hardness Refractive index Relative density Cleavage (crystal) Conchoidal fracture Carnallite Evaporite Halite Hilgardite Kainite Sylvite Lüneburg Kalkberg Type locality (geology) Leucite List of minerals A-B (complete)