The house is based on gabions and earthbag. the whole structure is connected by a metal mesh.
To protect against corrosion and to imitate gold, a thin layer of titanium nitride can be sprayed on - this technique is used for gilding church domes.
For insulation, you can use straw with petrification (the structure of straw is similar to wood, so it can also be petrified)
Low cost, eco friendly
When building on your own (and buying ready-made gabions), the price in Russia starts from $40 per m2 excluding finishing
The durability of the house is 100 years or more