Medium/large Chunks intuitively Chosen. 
  
Orange Calcite is an incredibly energizing and cleansing stone, particularly for the lower chakras, or energy centers, concerned with our feelings of belonging in the world, being connected to others and the planet, and our creativity.
It is an excellent stone to choose to balance the emotions and release feelings of fear and anxiety.
Chakras - Sacral 
Zodiacs - Leo, Cancer