Ink Review #294: Robert Oster Purple Rock


It's purple week! We are starting off with Robert Oster Purple Rock. I purchased my sample of ink from Vanness Pens


The color:

Purple Rock is one of those inks that looks a little bit different on every paper. On the Col-o-ring it looks more medium purple.



In large swabs the ink turns looks more of a dusky blue purple. There's just a little bit of pinkish red sheen on the edges. The sheen is not visible in writing.


Writing samples:

Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.

Dry time: 40 seconds

Water resistance: Low

Feathering: None

Show through: Medium

Bleeding: Low, mainly in the flex nib on Tomoe River paper.

Other properties: medium shadingtiny sheen, and no shimmer

On 20 pound copy paper the ink performed well, no issues that I noticed.

Comparison Swabs:

Ink swabs for comparison, left to right (top to bottom for mobile RSS): Robert Oster Black Violet, Robert Oster Purple Rock, and Robert Oster Claret. Click here to see the Robert Oster inks together.


Longer writing: 

I used a broad Pelikan M805 Ocean Swirl on Tomoe River paper. The ink had an average flow.


Overall, this ink really does look different on every paper. On the Col-o-ring it's more purple, and on most other papers it's more blue-violet. It has some lovely shading and behaves pretty well. Give it a try, you might love it.

Disclaimer: I purchased this ink myself, and all photos and opinions are my own. There are no affiliate links on this page.