The guidance for this range of coloured mica is that they should be used at a 1%-3% range. Titanium Dioxide.
Titanium Dioxide Powder 100% PURE FOOD GRADE White Food Pigment Icing Whitener
TITANIUM DIOXIDE ~ 50 TO 500 GRAMS ~ CERAMICS ~ PIGMENT ~ POTTERY ~ GLAZE
TITANIUM DIOXIDE POWDER - FOR CERAMICS
Winsor & Newton Winton Oil Colour Titanium White Twinpack (200ml)
R&F Encaustic Wax Paint Beeswax 104ml Medium Cake Titanium White Art Painting
Schmincke Horadam Gouache Paint Titanium White 15ml Artist Colour Tube