are they good combination?I believe in the power of crystals. An optional dab of olive oil will produce a beautiful shine. Keep away from household detergents, cosmetics, perfumes and hairspray. To clean, rub lightly with a soft polishing cloth. It's really a matter of personal preference. Avoid exposing malachite jewelry to harsh or abrasive cleaners and chemicals. Some people like to do it every month, some people cleanse it only if it feels like it's losing it's energy, and some people never cleanse their crystals. Always remove any jewellery or gemstones before exercising, cleaning or engaging in harsh physical activities such as sports. Malachite is a green gemstone associated with copper deposits. To clean your malachite, simply use soapy water and a soft cloth. Protect your stone from household chemicals which dull the shine. It’s best not to use ultrasonic cleaners to clean malachite, as the intense vibrations can cause fractures and damage. The Living Essence of Malachite aids in removing obstacles on a physical, mental, emotional, energetic, psychological and spiritual level while providing spiritual insights to a clear path that is in your highest good. It should not be worn while washing dishes or using harsh cleaning chemicals.Even everyday substances like hairspray, lotion, perfume or other cosmetics can contain chemicals that might damage the color of your malachite. It is an iron ore with a yellowish-brownish color. To clean your malachite, simply use soapy water and a soft cloth. Malachite will dissolve in acids - so you definitely do NOT want to try those. This is how I clean silver, its cheap, takes a few seconds and will remove even black tarnish. Never use an ultrasonic cleaner to clean your stone. Never use an ultrasonic cleaner to clean your stone. If the shine becomes dull, use a soft polishing cloth to gently buff the stone. Use a fine grade such as an 8000 grit. As far as the method you use, I would stay away from salt and water, as malachite is quite delicate and can be damaged easily by those. How to use Malachite to Enhance Your Feng Shui. Susan Robinson Wrong polishing techniques spreads the copper and makes it unattractive and hides the green color of this beautiful mineral.Tumbling is not a good solution to polish malachite. Rinse thoroughly to remove any soapy residue. Line a small dish with aluminium foil, and fill it just enough to cover the bangle with very hot water (the hotter the better, I use freshly boiled water from the kettle) add a tiny bit of bicarbinate of soda and place the objet in the bowl, the tarnish will be removed in seconds. Be sure to rinse well to remove soapy residue. Hope that works for you, it is a fragile stone so treat it with care. As with most gemstones, ultrasonic cleaners and steamers are not recommended. The polish on your malachite stone can be easily ruined or become dull over time. Scrub it gently and then either lightly mop it dry or let it air dry. As with most gemstones, ultrasonic cleaners and steamers are not recommended.