What is cobalt blue?
According to "Pigments through the Ages" a pigment made from cobalt blue glass has been known since the Middle Ages, but an improved form has been established in the 19th century. It was regarded to be durable and even recommended by one painter as a good substitution for ultramarine.
It was new to me that the name cobalt has a connection to the German Kobold which means goblin. German miners searching for silver were often deceived by cobalt or goblin ore that looked like silver, but wasn't. In fact the "Kobold" - after a mountain spirit according to an old tale - contains not only sulphur and arsenic which could be deadly when the ore got melted down, but also cobalt, a metallic element.
This particular color hue was the topic for our Jewelry Artisans Community Oldies but Goodies Challenge, and here's what I picked from the pieces entered.
1 and 8 Ganison Atelier
2 and 4 Jewelry Art by Dawn
3 and 6 Cat's Wire
5 and 7 RioRita
A favorite color of mine!Delete
Very nice collage. Interesting description of the source of Cobalt Blue:)ReplyDelete
And that was only the ultrashort version without any of the chemistry :-DDelete
Seeing all these lovely items together makes me realize what a beautiful color cobalt blue really is. It's a very elegant shade. Thank you for including me in the collage, Cat!ReplyDelete
The "Kobold" says thank you and also you are very welcome!Delete