Onyx

Uses: protection, strength, confidence
Properties: projective stone, assigned to the planets Mars and Saturn and the element of fire.
It is a protective stone, defends and protects against negativity consciously directed against you, in conflicts of all kinds, protects life, gives strength, helps in difficult and incomprehensible periods, during extraordinary physical and emotional stress, connects with the unity of the universe, focuses our energy in one direction , brings vigor and perseverance, allows you to become masters of your destiny, provides lessons from the past, increases self-confidence and self-control, heals old traumas affecting current life, reduces fear and anxiety. It maintains the balance of yin and yang energies in the body.
Medicinal use: reduces uncontrollable sexual desires, affects teeth, bones, bone marrow, treats blood disorders and leg problems.
Location: India, South America, USA
Colors: black, white, green
Technical description: silicate, a variety of agate, with alternating herbs and black bands, sometimes a black colored variety of chalcedony is offered as onyx, translucent to almost opaque, vitreous luster, no cleavage.

Degree of hardness: 7