Northstar's Borocolour Rod Blue Spruce NS-79

Northstar's Borocolour Rod Blue Spruce NS-79
Price/g
stick~40g
Order quantity: > 200g
A great opaque blue / green. Work in an oxidizing flame to maintain clarity. When reduced, you will get interesting gray streaks that appear like growth rings on a tree and regular steel blue streaks on the surface of the glass. When left oxidized, Blue Spruce remains pure and provides a fully saturated blue-green opaque color for stringers and blown work.