on salePlatinum Classic Cassis Black - Ink Sample

Product Code IS-Plat-InkK-2000-15

In Stock

out of stock

on salePlatinum Classic Cassis Black - Ink Sample

Product Code IS-Plat-InkK-2000-15

In Stock

out of stock


MSRP $2.75

A 2ml sample of Platinum Classic Cassis Black iron gall fountain pen ink, in a labeled plastic vial. Our swab pictured here was scanned after 24 hours.

Ink Samples
Fast Drying

Whether or not the ink contains glittery particles.

Freeze Resistant

Whether or not an ink is specially formulated to better withstand freezing temperatures.

Iron Gall

Ink made from iron salts and tannic acids. Though quite permanent and waterproof, these inks are typically known for causing chemical corrosion to metal pen parts (especially the nib) and should be used sparingly or with less-valuable pens.


Whether or not an ink is specially formulated to increase flow in your pen.


Whether or not the ink contains finely-ground solid particles in liquid suspension.

Water Resistant

Whether or not the ink, once dried on the paper, will resist being washed away with water.


Customer Reviews

Based on 3 reviews
Nicole G.
Very pretty iron gall ink

I like iron galls, because they are dry and make a finer line in my pens. The Cassis Black is dry, but not unpleasant to me. The color comes out a very pretty cherry red, then dries to a darker color that is also very interesting. If you splash water on the page, the pink coloring washes away, and the oxidized iron gall part remains on the page, so your writing is still legible. I was looking for an ink that can handle a little more splashing around (I'm constantly spilling something), so I didn't end up buying the full bottle. But if you don't care as much about some of the color washing away, this is a very nice and beautiful ink.

Stephen C.
Used to mark up drawings

It starts almost pink and dries to a blood color. So far the sample flows well in my Monteverde Ritma. It doesn't smear or discolor when the drafters hit it with highlighter to indicate complete. The only downside is that it takes a while to dry.

Ritchie D.
Not as red as you think, wonderful experience!

I have to write my review review the sample of this ink because I didn't buy the full bottle from Goulet, it was out of stock the day I made my order. On regular papers (I haven't tried it on high-end paper like Rhodia, I don't like these papers) this ink dries less red. In fact, in the sample vial it was a hot-pink-blood color, I thought surely they sent the wrong ink. On paper, with an extra-fine nib the ink went on quite pale. But as it dries it darkens and deepens to a more-brown color. Results vary wildly on different paper. On some art papers I ended up with a muted southwest adobe red kind of color. I don't care about the inconsistency, it's great to work with, not like anything I've used before, and watching it try is magical. It is a dry ink as well, and suits my needs on absorbent art paper.

FAQ about Ink Samples

How do I fill my fountain pen from an ink sample vial? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the fountain pen's filling mechanism.

Check out our blog post on How to Fill a Fountain Pen from an Ink Sample Vial.

How much writing can I do with 2ml of ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It really depends on how big or small you write, and the nib size you’re using. We find that usually you can get 2 good fills for a typical converter with our Ink samples, or one good fill with a piston-filling pen. How much writing depends on you more than anything else, so we recommend experimenting with different nib sizes to find what works best for you. 

What is shading, sheening, or shimmering ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Shading - A common (and often desired) result of a fountain pen ink pooling in certain parts of a letter when writing, so that the color and saturation of the ink appears different within a single letter or word. This characteristic cannot be achieved with ballpoint or rollerball pens and is a very appealing aspect of fountain pen use for those particularly drawn to all the pretty ink colors.

Sheen - Characteristic of a fountain pen ink where when ink pools another color can be seen on top of the ink, especially when looked at in different light angles using certain paper types. There is no way to guarantee an ink will sheen, but using a larger nib on a pen will help obtain sheening results in your writing.

Shimmering - Fountain pen ink that has small particles of glitter mixed in.

Is shimmering ink safe to use in fountain pens? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

Yes! Shimmering ink is a great way to add some flare to your writing. We have found that a larger nib will showcase more shimmering particles while writing, but you can use any nib size and shimmering ink. All the ink we sell is safe for use in fountain pens.

You can learn more in our blog: How to Write with Shimmering Ink.

What's your return policy for ink samples? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We do not accept returns for ink that has been used. Otherwise, we accept returns on unused ink products for up to 30 days from purchase. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.