Also known asseesasheesha metal
Sun rays are described as miracle rays that carry silver, gold, iron, mercury, lead and other minerals as well as vitamin D and vitamin B12, each at a particular time around sunrise. No electric light can supply these.
Oil-based paints contain lead, one of the major causes of cancer, and act as a slow poison on the lungs.
Walls and woodwork of living rooms and bedrooms
Yes, quartz can be hung, just as chandeliers are hung. But do not hang the chandeliers sold in the market today, because they are mixed with lead, which is harmful.