Purple Crystal cone 10

Hey kids,  got this great tile as a accident in a workshop firing a light soda/salt cone 10 firing. But need some verification that it works more than once.

If anyone could try it and see I would appreciate it!

Haynes Base with 5% cobalt carbonate cone 10 soda

Nepheline Syenite: 45.00 Grams

Silica: 30.00 Grams

Whiting: 8.00 Grams

Dolomite: 10.00 Grams

Talc: 7.00 Grams

Total: 100.00 Grams

 Add : 5% cobalt carbonate 

Fire in light salt or soda