Malachite is a protection stone, absorbing negative energies and pollutants from the atmosphere and from the body. It guards against radiation of all kinds, clears electromagnetic pollution and heals earth energies. Keep near microwaves in the kitchen and televisions in living areas. In the workplace Malachite protects against noise, over-bright fluorescent lighting, and harmful rays from technological equipment, negative phone calls and emails. Weight 434.49 g Gem Type 100% Natural Malachite Shape As Picture Size 61mm Origin DR Congo Treatment None at all Hardness 3.5-4 Refractive Index 1.66-1.91 Specific Gravity 3.54-4.1 The disclaimer about the healing properties as previously given : It is believed that certain gemstones and minerals have beneficial health and spiritual properties. We und Catawiki cannot guarantee or be held liable for these suggested attributes which have no scientific evidence and cannot be considered a substitute for traditional medical treatment.