DIY Temperature Control using a PID control and a solid state relay. Category. License.
The difference between regular shungite and elite or noble shungite is in the proportion of organic carbon in it. Regular shungite contains from 35 to 60 per cent of organic carbon while the percentage of carbon in elite shungite is much higher and totals from 92 to 98 per cent.
Jadeite is one of two forms of jade. This beautiful gem is loved in jewelry for its striking green color, but jadeite gemstones were actually originally used thousands of years ago as weapons. Jade's toughness made it ideal for carving into ax heads and tools as well as ritual artifacts.