kyanite, this gemstone improves inner vision and communication. Enhance creativity. Cleanse past trauma. calming . chakra: throat, third eye.
Not reach the chemical product. like bleach or any other heavy cleaning product.
For silver part, you could use alcohol to rinse it , then use silver cloth to rub the silver setting.
for stone part, simply use clean water (tub water ok) to rinse it . No need to put it in the water for too long time. After rinse it , put the item under the moonlight.