clay: low fire crystal glaze

Some years ago I bought this low fire crystal glaze, I was disappointed when I first tried it. I didn't get this beautiful "patriarch" purple, which is what Wikipedia terms this reddish purple.                     

The result was instead blue with splotches of orange and a little yellow and white without any crystalline effect. And so when I cast some clay into plaster mold to make a carp, I thought I'd try the glaze again. But I got the same result.

I like it though. It's pretty even though the effect was a Cone 6 instead of the Cone 06 I expected. 

I swear though that I put it through a low fire kiln. And so let me try again because maybe it did get put accidentally on the midfire shelf.