Chalcogen, Mechanical properties, Mg-x polyhedra, Triclinic

• Mg-Na-O-P
• H-Mg-O-Si
• Fe-Mg-O-V
• Mg-Mn-O-Si
• Al-Fe-H-Mg-O-Si
• elastic moduli
• isothermal bulk modulus
• hardness
• Mohs hardness
• chalcogen
• alkaline
• transitional
• disordered