Guild Wars 2

I recently obtained the precursor Spark and I transmuted it into another skin, I do not have the option to transmute it back into Spark.
Will I still be able to use this transmuted Spark to create Incinerator Legendary?

I put this answer on your other thread you made on this subject.

It may still be good. I found this thread that says to check the tooltip.

https://www.reddit.com/r/Guildwars2/comments/2jiu2d/transmuting_precursors/

“If you got dusk and transmute it to have the skin of Cobalt, the weapon is called Cobalt. But below in the tooltip is line that say “transmuted” and also something like “will be treated as dusk in the mystic forge
And
“Go into the Mystic Forge and put your transmuted precursor in there— there is a new feature where the MF will always use the original item, and will tell you so in the tooltip when hovering over it.”