Monster sheening inks seem to be very popular right now, so let's take a look at Organics Studio Santiago Sea Blue. The full name of this ink is Organics Studio Masters of Writing Ernest Hemingway Santiago's Sea Blue, which is a bit of a mouthful. I purchased my sample of ink from Vanness Pens.
Santiago Sea Blue is a dark teal with pink sheen, or more accurately, it's a pink sheen with a dark teal undertone.
In large swabs you can see a little bit of the underlying color, but it's mostly just bright pink sheen.
Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.
Dry time: 80 seconds
Water resistance: Low
Show through: Medium
On 20 pound copy paper the ink was prone to smearing.
Ink swabs for comparison, left to right (top to bottom for mobile RSS): Organics Studio Walden, Organics Studio Santiago Sea Blue, and Organics Studio Emerson. Click here to see the Organics Studio inks together. Walden is more of a true teal, and Emerson is blue. Santiago Sea Blue sits somewhere in-between the two, a dark teal underneath all of that dark pink. All three have very similar sheen.
I used a Pelikan 400N and a broad Pelikan M805 Ocean Swirl on Tomoe River paper. The ink had a slightly sticky flow. There was some nib creep. The ink did match the Ocean Swirl well.
I let this page dry for two days, and then ran my hand across the page twice. There was a lot more smearing than I would like.
Overall, this ink had some hard starts, skipping, nib creep, and smearing, as well as having a very long dry time and is very hard to clean. It's a bit too much trouble for me, but it is beautiful.
Disclaimer: I purchased this ink myself, and all photos and opinions are my own. There are no affiliate links on this page.