Finally, I have been able make a fair facsimile of Parker Penman Sapphire, both in colour and behaviour.
I was inspired by jdboucher's use of PR Tanzanite to brighten up PR American Blue.
I decided to see what I could do with Noodler's Ottoman Azure and PR Tanzanite.
And it worked!!
I started off with 10 drops of Ottoman Azure and 2 drops of Tanzanite. This is very close, however, the Penman Sapphire still has a touch of green, and was a little lighter than the facsimile. I experimented a little more and ended up with this formula --
Noodler's Ottoman Azure : 60
PR Tanzanite : 8
PR Blue Suede : 4You can drop the Blue Suede (or any other similar teal) if you want.
And these are the results --
The original Parker Penman Sapphire swatch is on the top, and the Faux Penman Sapphire #8b is on the bottom.
This shows how the ink writes in a normal Jinhao Long March pen. As you can see, the Parker Penman Sapphire is on the left, and the Faux Penman Sapphire #8b on the right.
This image shows that both inks have similar bleeding properties. The sample was written on Pukka Pad paper, which has mild feathering and bleeding properties.
Finally, this shows the feathering properties. The original Penman Sapphire is on the left, and the Faux Sapphire on the right. The imitation perhaps has a tad more feathering than the original, perhaps because I used the PR Tanzanite. A similar bright blue-purple with better behaviour might give better results.
I think I am finally satisfied with a practical replacement for Parker Penman Sapphire.