A cube is one of the platonic solids that has been studies for thousands of years.  It is a 6 sided hexahedron shape that represents earth.  It is a symbol of prosperity and has a matt finish.
Shungite:
- It is a mineral whose deposits are only found in Karelia Russia
 
- A natural antioxidant that can enhance human immunity against many serious diseases
 
- Sorbent for purifying water and air from many organic and inorganic compounds
 
- Support a wide range of trace elements and of biologically active substances intensifying biological processes in   humans and animals
 
- Material , actively interacting with electromagnetic fields of different nature (man-made high-frequency, solar, geopathogenic, biological) and neutralizing their negative impact
 
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Aids in ensuring human health