Cobalt - In stock yarn

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First used centuries ago to create a deep blue, Cobalt compounds are still used to pigment paints, inks, glass, and glazes today. The main applications for Cobalt have shifted to producing things like high performance alloys, but this brilliant blue is a lot more fun to knit!

The Elements Collection colorways are all inspired by the elements of the periodic table. Sometimes the interpretation is very literal, but due to the sheer number of elements (and the fact that many of them are either colorless or metals of similar colors) I also have to get creative! Developing an Element colorway takes multiple batches and lots of tweaking, so what you see above may change slightly in the future; note the Colorway Repeatability indicator below.

If you want the best chance at skeins that play well together, please order all you need for your project at one time. I recommend alternating skeins for large projects. 

Yarn bases:

Star Stuff Sock: 75% SW Merino/20% Nylon/5% Stellina
438 yards/100 grams

Electron Sock: 80% Superwash Merino/20% Nylon
400 yards/100 grams

Muon Fingering: 90% Superwash Targhee/10% Nylon
465 yards/115 grams

Meson DK: 100% Fine Superwash Merino
250 yards/115 grams

Photon Lace: 55% Superwash BFL/45% Silk
875 yards/100 grams

Colorway repeatability: Theory


Mad science colorways are one of a kind (OOAK), unique, and may never appear again exactly as you see them now. Everything with Experiment or OOAK in the name is a non-repeatable Mad Science colorway.

Hypothesis colorways are somewhat repeatable but can vary quite a bit from batch to batch. Colorways I'm tweaking and refining are Hypothesis colorways, as are some colorways that have recipes but are too variable to be considered Theories, such as Nebula colorways.

Theory colorways are dialed-in recipes that are as repeatable as they come here at EFW. Most of the Elements Collection will end up as Theory colorways as they are developed and pass through testing.


I only include pictures that I think accurately represent the colors of the fiber, but differences in computer monitors mean my photos may not be 100% accurate. I accept returns of items in original condition within 30 days of purchase; see the Shipping & Returns page for more information.

My top goal here at Elemental Fiberworks is to provide an fun and geeky spinning experience that you'll enjoy every minute of! Please visit my Info & FAQ page if you have questions regarding my different fiber bases, shipping, returns, or fiber care, and if you still have a question, visit the Contact form.