The KonMari (Marie Kondo) website sells a shaped piece of solid aluminium, making the following claims for it:
Regular price $50.00
Marie uses a tuning fork in her everyday life to help her to reset. Striking it against something solid – a crystal is ideal – creates pure tones that have the power to restore a sense of balance. This KonMari tuning fork can help you to reset and be present. Made of aluminum alloy, it has a frequency of 4,096 hertz, which is said to amplify the healing properties of crystals – especially quartz.
Is striking the Marie Kondo tuning fork on a crystal (especially quartz) more effective than placebo in healing illness, injury, or medical conditions of any kind?