Get ready for Snow Crystal vs Periwinkle Twinkle Ink, a reader-requested ink comparison that you all get to enjoy.
Meet the Inks: Snow Crystal vs Periwinkle Twinkle Ink
Pilot Iroshizuku Snow Crystal ink: A rich, cool blue with subtle shading and clean performance.
Dominant Industry Periwinkle Twinkle ink: A soft periwinkle base with a gorgeous silver shimmer.
Side-by-Side Swatch Comparison

Snow Crystal vs Periwinkle Twinkle Ink side by side comparisons show some obvious differences, and some not so obvious differences. Pilot Iroshizuku Rikka (Snow Crystal) ink is the bright sky blue of Ama-Iro ink with a slight green tinge added, offering some lovely shading possibilities and some VERY low sheen potential that I don’t really see in my ink testing so far. Dominant Industry Periwinkle Twinkle ink approaches “blue” from a different direction. One of Dominant Industry’s Pearl series inks, the purple-toned blue features a beautiful rose gold shimmer. Periwinkle Twinkle has no sheen, and some shading, but the star is definitely the pearlescent shimmer. Both inks are great performers with an average ink flow.
The Difference in the Details: Snow Crystal vs Periwinkle Twinkle Ink

How Fast Do they Dry? Not that fast. Rikka (aka Snow Crystal ink) shows a dry time around 20 seconds with Dominant Industry’s Periwinkle Twinkle showing a bit of a longer dry time around 30 seconds. (However, that’s absolutely expected since Rikka is not a shimmer ink, and Periwinkle Twinkle has a strong shimmer element).

Which One Handles Water Exposure Better? Rikka stands up to water a little bit better than Dominant Industry’s Periwinkle Twinkle, but neither of them is anywhere near water resistant.
Ink Flow: Both of the inks have a pretty average ink flow.
Conclusion: Two Blues, Two Vibes

Whether you’re drawn to the crisp elegance of Pilot Iroshizuku Snow Crystal fountain pen ink or the shimmering whimsy of Dominant Industry Periwinkle Twinkle, both inks offer a unique writing experience worthy of your favorite fountain pen. Snow Crystal brings understated beauty and reliable performance, while Periwinkle Twinkle adds a magical, sparkling flair to your page.
Big thanks to our Pen Chalet community for inspiring this side-by-side showdown—your ink curiosity keeps us swatching! Have another comparison you’d love to see? Drop it in the comments or reach out on social. We’re here to help you find the perfect ink match.
🖋️ Shop both inks and explore more of your favorites anytime at PenChalet.com.
Red Fountain Pens
Buy Black Fountain Pens
Best Blue Fountain Pens
Other Resources:
New Pens & Inks Coming Soon
Stub Nib Fountain Pens
Gifts for Grads
Pen Ink & Refills
Best Rollerball Pens
Best Desktop Pen Holders
Pen Brands:
Clairefontaine Notebooks
Diamine Company
Visconti Pen