Goulet Pens has a great review of the new Herbin ink Kyanite du Nepal (which will be available in the USA late June). Their post has images of the ink showing the sheen and shimmer, writing samples, and drying times. They describe the color:
Herbin Kyanite du Nepal is a bright, cheery blue with a delightfully rich deep magenta sheen and glittering silver shimmer particles.
They also have advice on how to handle the high shimmer content in the ink.
The photos are absolutely gorgeous! If you want to be sure to get ahold of this ink in case it sells out quickly, sign up to be notified as soon as it’s available!