J. Herbin 1670 Bleu Ocean (50ml Bottled Ink)
50ml bottle of J. Herbin 1670 Bleu Ocean (dark blue) ink, released in 2012.
Reformulated in April 2015 to include gold sparkles! This is the version we now have.
Click here for our in-depth review of this ink on our blog.
It is an ink formulated for use in fountain pens, though J. Herbin does put a pretty scary warning on the box about it being highly saturated and how you should clean it out of your pen regularly. The gold sheen is achieved by some sort of fine pigment that is quite visible in the bottle and even in your pen (if you can see in your pen), though we've found that it the Herbin warning is probably a little overstated. You will definitely want to be diligent about maintaining your pens with Bleu Ocean in it, though no particular caution needs to be taken as long as you're exercising regular pen maintenance.
This ink is highly saturated and you can visibly see the gold settling on the bottom of the bottle, so you'll want to shake the living dickens out of it before inking it up in your pen to get the most sheen to appear in your writing! The paper really affects how the sheen appears, too, the more absorbent the paper, the less the gold appears. So stick to the really slick, really ink-resistant papers here if you want to see that sparkle!