CiM describes Firecracker as an Opaque, but when diluted with clear, or only partially struck - it is a transparent.
It really is a wonderful shade of red - it might be my new favorite red!
Here, on the left, self coloured, wound, relatively cool. On the right, made a gather first - heated to clear hot, self struck as it cooled. Kilned, no further striking.
More spacers - each a slightly different shade, depending on the degree of heating.
This is a base of firecracker, encase clear, Goldstone stringer, mash, press pattern.
And finally - Firecracker. with dot of clear.
Firecracker is a transparent red - ranging from amber through orange to red, depending on the degree of striking. It does tend to develop cloudiness as it is worked, but it is a delicious and juicy colour with no hint of liveriness (brown-ness).