💫 Blue lore and care
Ground Azurite was once an important blue pigment in painting and decoration. Its final shade depended partly on grain size: coarser particles could appear deeper blue, while finer material produced paler, more diffuse tones.
Azurite measures approximately 3.5–4 on the Mohs scale and is soft, brittle and sensitive to acids. Keep it dry, avoid soaking, chemicals, steam and ultrasonic cleaning, and remove dust gently with a soft brush. Do not grind it or use it for direct-contact crystal water.