This type of applying texture to ceramics is a great raku method involving a lot of chance and unexpected results.
The ceramic cone was initially bisque fired to cone 04 and then covered in a mixture of chemicals and fired again to 650°C. The firing process took around 60min + time for cooling.
The glaze recipe used for this cone without any specific amounts is as follows:
copper sulphate pentahydrate
leaves / vegetation
Step by step explanation is given in the gallery under each photograph.