Ultramarine
Ultramarine is essentially a three-dimensional aluminosilicate lattice with entrapped sodium ions and ionic sulfur groups, and its earliest applications were in artists' colours and as a textile brightener.
Ultramarine blue and Ultramarine violet
Color Index: Pigment Violet 15-77007；
Advantages: 
Non-Toxic
Non-Migratory
Compatible with all polymers
Excellent heat stability up to 350℃
Excellent weatherfastness (4-5 grade)
Excellent lightfastness (7-8 grade)
Excellent resistance to alkali
Maintains dimensional stability
Easily dispersed
Application:
Ultramarines are widely used in plastics, printing inks, rubber,
paint, paper, soap, detergents, cosmetics etc.
