A copper metal alloy, for use in making elements for promoting and/or stimulating vital energy comprises between 60% and 70% in weight of copper (Cu), between 16% and 24% in weight of silver (Ag), between 3% and 6% in weight of zinc (Zn), between 3% and 6% in weight of manganese (Mn) and between 0.5%> and 6%> in weight of germanium (Ge). Tin (Sn) in percentage comprised between 3% and 6% can also be provided for. Platinum (Pt) can also be provided for between 0.1% and 5% in weight. The alloy is used for making for example sheets in form of plates or strips which are associated to articles of various types.
