in clear crystal, copper
In Chinese tradition the cube representats the earth deity. In Mayan tradition, the Tree of Life grows from the Centre of a Cube. Among the pagan mythologists, Mercury, or Hermes, was always represented by a cubical stone, because he was the type of truth, and the same form was adopted by the Israelites in the construction of the tabernacle, which was to be the dwelling-place of divine truth.
The cube as a symbol is associated with solidity, truth and endurance.
Natural Crystal Quartz