Chalcedony has many healing properties. It is a nurturing stone that promotes overall generosity. It is said to help with emotional balance, stamina, vitality, endurance, energy, kindness, and friendliness. It can alleviate hostility, 
self-doubt, negative thoughts and emotions, and nightmares.

The  crystal pictured is the one you receive 

585g

92mm sphere

All  measurements are approximate