Moslty black tartan: Nightstalker vs Glyndwr?

[Stitchwiz]

Here are the pics I promised.

The Ben Dubh Tartan when seen in normal light looks like a plain black fabric kilt.



But when it moves, is in direct sunlight or you catch the light just right you can see the Tartan pattern quite plainly.



This is achieved by using two different yarns. Both are the exact same color of black but one is spun and twisted to the left and one to the right.

This is beautiful, Steve. I love that it looks black when it is just hanging and yet changes with movement/lighting.

Is it difficult to work with this tartan?