Onyx is a stone recommended during times of pain and sorrow. It’s known for balancing male and female polarity and increasing hormonal balance. It’s also said to help with objectivity and making intelligent decisions. In addition, it’s believed to help strengthen one’s bones.
In addition to the generic healing properties of Onyx, specific colours and types have additional attributes:
Black Onyx is associated with our Base Chakra.
Zodiac - Gemini, Leo 
Element - Earth

Black Network Agate is a stone of Inner Stability. Harmonizes positive and negative forces. Grounds the emotions. Increases concentration and clarity. Opens the mind to higher thought. Fosters love